Firefox 26



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  • 1Firefox 26 Test Plan
    • 1.5Aurora
      • 1.5.1Branch Migration
    • 1.7Beta 1
    • 1.8Beta 2
    • 1.9Beta 3
    • 1.10Beta 4
    • 1.11Beta 5
    • 1.12Beta 6
    • 1.13Beta 7
    • 1.14Beta 8
    • 1.16Beta 10
    • 1.17Release Candidate

Summary

MilestoneFirefox 26
Status Currently in Nightly -- merging to Aurora on 2013-09-16
LeadJuan Becerra (irc: juanb)
2ndAnthony Hughes (irc: ashughes)
Builds [ftp] [http] [web]
  • The following is the test plan for Firefox 26 from Nightly through to Release. Use this document as a reference for what is being tested to validate the quality of Firefox 26. After the release this document will be used as an archive of what was done to validate this release.
  • Buy Firefox Tornado 26 D online. Check price, available colour, size guide and specifications. Get your cycle delivered.
  • Buy Firefox Breeze 26 online. Check price, available colour, size guide and specifications. Get your cycle delivered.
Download

Firefox's features are robust and generally competitive. The most important feature in the modern Firefox is Sync.Sync now smoothly syncs your bookmarks, passwords, preferences, history, and tabs, not only with other computers, but also with your Android version of Firefox. Notes (First offered to release channel users on December 10, 2013). Check out 'What s New' and 'Known Issues' for this version of Firefox below. As always, you re encouraged to tell us what you think, or file a bug in Bugzilla. We'd also like extend a special thank you to all of the new Mozillians who contributed to Firefox 26! If interested, please see the complete list of changes in this.

The following is the test plan for Firefox 26 from Nightly through to Release. Use this document as a reference for what is being tested to validate the quality of Firefox 26. After the release this document will be used as an archive of what was done to validate this release.

If you have some free time, please pick a task below and get in touch with one of the leads.

Schedule

  • 2013.08.05: Nightly
  • 2013.09.20: Aurora
  • 2013.10.25: Pre-Beta feature sign-offs
  • 2013.10.31: Beta 1
  • 2013.11.05: Beta 2
  • 2013.11.07: Beta 3
  • 2013.11.12: Beta 4
  • 2013.11.14: Beta 5
  • 2013.11.19: Beta 6
  • 2013.11.21: Beta 7
  • 2013.11.26: Beta 8
  • 2013.11.28: Beta 9
  • 2013.12.03: Beta 10
  • 2013.12.09: Release Candidate
  • 2013.12.10: Final

Features

Sign-off Criteria
  • All user stories covered by manual or automated tests
  • Manual testing complete with no blocking regressions
  • Automated testing complete with no blocking regressions
  • 0 untriaged unconfirmed bugs
  • 0 untriaged unverified fixes
Status
Feature Owner Documentation Tracked Bugs Aurora Merge Sign-off Pre-beta Sign-off
Firefox Metro Juan BecerraBug Testing[DONE]Disabled
Updates for limited accounts Alexandra LucinetTest Plan1 bug[DONE][DONE]
H264/AAC/MP3 support - MP3 decoding on XP Cornel IonceTest Plan1 bug[DONE][DONE]
Web App Runtime Bogdan MarisTest Plan11 bugs[DONE][DONE]
Download Manager (backend work) Mihaela Velimiroviciu, Mihai Morar16 bugs[DONE][DONE]
Session Restore (backend work) Cornel Ionce19 bugs[DONE][DONE]
JSON Add-ons DB Tracy Walker, Mihai Morar1 bug[DONE] NA
Make plugins default to click-to-play Paul SilaghiTest Plan1 bug[DONE][DONE]
App Manager Petruta RasaMDN doc NA[ON TRACK]

Nightly

Aurora

Branch Migration

Pre Sign-off Tasks

  • [DONE] Firefox branch migrated (Release Management)
  • [DONE] Mozmill Tests branch migrated (Automation Development)
  • {{|}} Updates throttled on aurora channel (Release Engineering)
  • {{|}} Updates verified throttled on aurora channel (QA)

Sign-off Tasks

  • [DONE] Mozmill Daily functional testruns pass with no failures (report)
  • [DONE] Mozmill Daily auroratest update testruns pass with no failures (report)
  • [DONE] Scope features tested and signed off for Aurora uplift
  • Metro Firefox will be enabled in Aurora for the first time. Two of the issues blocking it have been resolved and verified. See {{bug|903866} and bug 918107 which deal with software keyboard functionality and using a 'whatsnew' page that points to a support article.

Post Sign-off Tasks

  • Aurora sign-off email sent (QA)
  • Updates unthrottled on aurora channel (Release Engineering)
  • Updates verified unthrottled on aurora channel (QA)

WebRTC

Using the Moztrap test as a guideline, verify that Firefox 26.0a2 is no worse than Firefox 22.0 when making AppRTC calls of >5 minutes in length. When testing, here are the guidelines to follow:

  • Have only one browser open on each machine at any given time
  • Have only one call running at any given time on a particular machine
  • Make sure the caller and callee are always on *different* machines.
  • Please don't test any 3+-way calls for this sanity check -- We just want to see the results for 1:1 (basic) calling
  • If you find regressions, report a bug and CC Randell Jesup and Maire Reavy; they can help track down if the regressions are real or not
    • Tip: be sure to provide extremely detailed steps to reproduce and witnessed results, as well as detailed information about your test environment; more information is better than not enough information.
Caller Callee Result
Firefox 26.0a2 on Windows 7 Firefox 26.0a2 on Windows 7PASS
Firefox 22.0 on Windows 7 Firefox 26.0a2 on Windows XPFAIL (6*)
Chrome Stable on Windows 7 Firefox 26.0a2 on Windows 8PASS
Firefox 26.0a2 on Windows 7 Firefox 22.0 on Mac OSX 10.8FAIL (2*)
Firefox 26.0a2 on Windows 7 Chrome Stable on Ubuntu 12.04FAIL (4*)
Firefox 22.0 on Windows XP Firefox 26.0a2 on Windows 7FAIL (6*)
Firefox 26.0a2 on Windows XP Firefox 22.0 on Windows XPFAIL (2*)
Firefox 26.0a2 on Windows XP Chrome Stable on Windows 8PASS (5*)
Chrome Stable on Windows XP Firefox 26.0a2 on Mac OSX 10.8PASS
Firefox 22.0 on Windows XP Firefox 26.0a2 on Ubuntu 13.04FAIL (6*)
Chrome Stable on Windows 8 Firefox 26.0a2 on Windows 7PASS
Firefox 26.0a2 on Windows 8 Chrome Stable on Windows XPPASS
Firefox 22.0 on Windows 8 Firefox 26.0a2 on Windows 8PASS (1*)
Firefox 26.0a2 on Windows 8 Firefox 22.0 on Windows 8PASS (5*)
Firefox 22.0 on Windows 8 Firefox 26.0a2 on Mac OSX 10.8PASS(5*)
Chrome Stable on Windows 8 Firefox 26.0a2 on Ubuntu 13.04PASS
Firefox 26.0a2 on Mac OSX 10.8 Firefox 22.0 on Windows 7PASS (5*)
Chrome Stable on Mac OSX 10.8 Firefox 26.0a2 on Windows XPPASS
Firefox 22.0 on Mac OSX 10.8 Firefox 26.0a2 on Windows 8PASS
Firefox 26.0a2 on Mac OSX 10.8 Chrome Stable on Mac OSX 10.8PASS
Firefox 26.0a2 on Mac OSX 10.8 Firefox 22.0 on Ubuntu 13.04PASS
Firefox 26.0a2 on Ubuntu 12.04 Chrome Stable on Windows 7PASS
Firefox 26.0 on Ubuntu 12.04 Firefox 26.0a2 on Windows XPPASS (1*)
Chrome Stable on Ubuntu 12.04 Firefox 26.0a2 on Windows 8FAIL (3*)
Firefox 26.0a2 on Ubuntu 12.04 Firefox 22.0 on Mac OSX 10.8FAIL (6*)
Firefox 26.0a2 on Ubuntu 12.04 Chrome Stable on Ubuntu 13.04PASS

Detailed Results:

  • (1*) Callee sometimes hears the caller with a delay (~1sec)
    • reproducible also with 25.0a2
  • (2*) Image freezes on caller side after ~15 seconds
    • not reproducible with Firefox 22
    • bug 922051 Image freezes on caller side after a short period of time
  • (3*) Caller and callee see only themselves in both video windows (large and small); there is no sound connection between the 2 parts
    • reproducible with Firefox 22
  • (4*) Caller and callee remain in 'Connecting...' state
    • reproducible with Firefox 22 and 25.0a2
  • (5*) Caller hears delayed sound
    • reproducible with Firefox 22 and 25beta1
  • (6*) Image freezes on callee side
    • not reproducible with Firefox 22 and 25.0a2
    • bug 922132 Image freezes on callee side after a while
Firefox 26

Beta

  • Click to Play by default - check plugin heavy websites for failures and provide feedback on UX

Beta 1

Build Info

Firefox
  • Builds: build1
  • Build ID: 20131028225529
  • Changes: build1

Firefox 26 Browser

Check List

  • [DONE] Automation (report)
  • [DONE] Regression Testing (report)
  • [DONE] Updates on betatest channel (report)
  • [DONE] Updates on releasetest channel (report)
  • [DONE] Updates on beta channel (report)

Regression Testing

The following areas have been identified for regression testing and will be covered via Moztrap smoketests.

Coverage
  • Tests: Breakpad, Click-to-Play Plugins, Session Restore, MP3 playback
  • Platforms: Windows XP, Windows 7 64-bit, Windows Vista, Windows 8.1 32-bit, Mac OSX 10.9, Ubuntu 13.10 64-bit
Instructions
  • Select one of the platforms
  • Follow the steps in each of the tests and report your results within Moztrap
  • When you get to the WebRTC smoketest refer to the Special Coverage for WebRTC section below for coverage details
  • If you encounter a bug, report it and add it to the list below using the bug number template

If you find a site where click-to-play is broken please add it to this document

Notes
  • Websites tested for CTP: https://etherpad.mozilla.org/firefox26b1-plugins
  • Tests were not available for run for Windows Vista, so they were run without entering results in Moztrap.

Issues Found

List any new issues found or old issues reopened using the bug number template. These issues will be triaged and escalated by the release leads.

  • bug 932786 - CTP doorhanger is not showing the right corresponding pop-up
  • bug 932813 - Time progress jumps to the end for mp3s via network
  • bug 932777 - 'Firefox is already running... ' error is displayed when trying to open a link .
  • bug 932824 - The overlay to Activate Adobe Flash is briefly displayed
  • bug 932832 - Click to play overlay not showing for Google Talk plugin.

Beta 2

Build Info

  • Builds: build1
  • Build ID: 20131104182142
  • Changes: build1

Check List

  • [DONE] Automation (report)
    • Investigating a couple of cookie test failures in pl and ru. ... It turned out to be bug 856084
  • [DONE] Regression Testing (report)
    • No new issues reported.
  • [DONE] Updates on betatest channel (report)
  • [DONE] Updates on releasetest channel (report)
  • [DONE] Updates on beta channel (report)
Release

Regression Testing

The following areas have been identified for regression testing and will be covered via Moztrap smoketests.

Coverage
  • Tests: Session Restore (bug 931891), WebAudio, Downloads.jsm, Updates for limited accounts
  • Platforms: Windows XP, Windows 7 64-bit, Mac OSX 10.7, Ubuntu 12.04 32-bit
Instructions
  • Select one of the platforms
  • Follow the steps in each of the tests and report your results within Moztrap
  • If you encounter a bug, report it and add it to the list below using the bug number template
Notes

Firefox 26 Release Date

Issues Found

List any new issues found or old issues reopened using the bug number template. These issues will be triaged and escalated by the release leads.

Beta 3

Build Info

  • Builds: build1
  • Build ID: 20131107161719
  • Changes: build1

Check List

  • [DONE] Automation (report)
  • [DONE] Regression Testing (report)
  • [DONE] Updates on betatest channel (report)
  • [DONE] Updates on releasetest channel (report)
  • [DONE] Updates on beta channel (report)

Regression Testing

The following areas have been identified for regression testing and will be covered via Moztrap smoketests.

Coverage
  • Tests: CTP (bug 934503,bug 932786,bug 932446,bug 745187), WebAudio

(bug 933156,bug 898291,bug 924286), Mixed Content Blocker, WebApp Runtime

  • Platforms: Windows XP, Windows 7 64-bit, Mac OSX 10.8, Ubuntu 12.04 64-bit
Instructions
  • Select one of the platforms
  • Follow the steps in each of the tests and report your results within Moztrap
  • If you encounter a bug, report it and add it to the list below using the bug number template
Notes
  • Websites tested for CTP: https://etherpad.mozilla.org/firefox26b3-plugins

Issues Found

List any new issues found or old issues reopened using the bug number template. These issues will be triaged and escalated by the release leads.

Beta 4

Build Info

  • Builds: build1
  • Build ID: 20131111154639
  • Changes: build1

Check List

  • [DONE] Automation (report)
  • [DONE] Regression Testing (report)
  • [DONE] Updates on betatest channel (report)
  • [DONE] Updates on releasetest channel (report)
    • Mozmill testing infrastructure is experiencing hiccups, but from the partial results, it looks like updates are working fine.
  • [DONE] Updates on beta channel (report)

Regression Testing

The following areas have been identified for regression testing and will be covered via Moztrap smoketests.

Coverage
  • Tests: Graphics (CSS gradients, SVG), layout, TLS, geolocation, PDF Viewer
  • Platforms: Windows XP, Windows 8.1 64bit, Windows 7 32bit, Mac OSX 10.6, Ubuntu 12.04 32-bit
Instructions
  • Select one of the platforms
  • Follow the steps in each of the tests and report your results within Moztrap
  • If you encounter a bug, report it and add it to the list below using the bug number template
Notes
  • Sites tested for Graphics, Layout (besides those in the Web Compatibility test) and TLS: https://etherpad.mozilla.org/firefox26b4-exploratory

Issues Found

List any new issues found or old issues reopened using the bug number template. These issues will be triaged and escalated by the release leads.

  • bug 937663 - The pdf embedded using object tag is blocked by the mixed content blocker

Beta 5

Build Info

  • Builds: build1
  • Build ID: 20131114085019
  • Changes: build1

Check List

  • [DONE] Automation (report)
  • [DONE] Regression Testing (report)
  • [DONE] Updates on betatest channel (report)
  • [DONE] Updates on releasetest channel (report)
  • [DONE] Updates on beta channel (report)

Regression Testing

The following areas have been identified for regression testing and will be covered via Moztrap smoketests.

Coverage
  • Tests: History
  • Platforms: Windows XP, Windows 7 64bit, Mac OSX 10.7, Ubuntu 12.04 64-bit
Instructions
  • Perform exploratory testing on the History component and add the details of your testing here.
  • If you encounter a bug, report it and add it to the list below using the bug number template.
Notes

Issues Found

List any new issues found or old issues reopened using the bug number template. These issues will be triaged and escalated by the release leads.

Beta 6

Build Info

  • Builds: build1
  • Build ID: 20131118212339
  • Changes: build1

Check List

  • [DONE] Automation (report)
  • [DONE] Regression Testing (report)
  • [DONE] Updates on betatest channel (report)
  • [DONE] Updates on releasetest channel (report)
  • [DONE] Updates on beta channel (report)

Regression Testing

The following areas have been identified for regression testing and will be covered via Moztrap smoketests.

Coverage
  • Tests: SVG, DOM:Core and HTML, Core:Layout, SocialAPI, WebGL
  • Platforms: Windows XP, Windows 7 64bit, Mac OSX 10.8, Ubuntu 13.04 64-bit
Instructions
  • Select one of the platforms
  • Follow the steps in each of the tests and report your results within Moztrap
  • Make sure to also do some exploratory testing where permitted (including testing more sites for the web compatibility test)
  • If you encounter a bug, report it and add it to the list below using the bug number template
Notes

Issues Found

List any new issues found or old issues reopened using the bug number template. These issues will be triaged and escalated by the release leads.

  • bug 940378 - Multiple issues with Social API sidebar

Beta 7

Build Info

  • Builds: build1
  • Build ID: 20131122094025
  • Changes: build1

Check List

  • [DONE] Automation (report)
  • [DONE] Regression Testing
    • Results: A couple of minor issues were found, and an existing SVG performance issue was identified.
  • [DONE] Updates on betatest channel (report)
  • [DONE] Updates on releasetest channel (report)
  • [DONE] Updates on beta channel (report)

Regression Testing

The following areas have been identified for regression testing and will be covered via exploratory testing.

Coverage
  • Tests: CTP (bug 941137, bug 932854), SVG bug 933057
  • Platforms: Windows XP, Windows 7 64bit, Mac OSX 10.7, Ubuntu 12.04 32-bit
Instructions
  • Perform exploratory testing on CTP and SVG starting from the bugs above.
  • Add the details of your testing here.
  • If you encounter a bug, report it and add it to the list below using the bug number template
Notes

Issues Found

List any new issues found or old issues reopened using the bug number template. These issues will be triaged and escalated by the release leads.

  • bug 942834 - Loading message is stuck on SVG animation
  • bug 942860 - Notification bar for hidden plugins shows for a few seconds and then hides for www.solomid.net page.

Beta 8

Build Info

  • Builds: build1
  • Build ID: 20131125215016
  • Changes: build1

Check List

  • [DONE] Automation (report)
  • [DONE] Regression Testing (report)
  • [DONE] Updates on betatest channel (report)
  • [DONE] Updates on releasetest channel (report)
  • [ON TRACK] Updates on beta channel (report)

Regression Testing

The following areas have been identified for regression testing and will be covered via Moztrap smoketests.

Firefox 26 Kompac Folding Bicycle

Coverage
  • Tests: Installer (bug 941397), Downloads Panel, WebRTC
  • Platforms: Windows 8.1 64bit, Windows 7 32bit, Mac OSX 10.9, Ubuntu 13.10 32-bit & Ubuntu 12.04 32-bit (for WebTRC)
Instructions
  • Select one of the platforms
  • Follow the steps in each of the tests and report your results within Moztrap
  • Make sure to also do some exploratory testing where permitted
  • If you encounter a bug, report it and add it to the list below using the bug number template
Installer coverage
  • Windows 7 64bit, 8.1 64bit, Windows XP 32bit, Windows Vista 32bit
  • ja, zh-TW, zh-CN, ko, th, he, ru, hi-IN, ar
WebRTC coverage
Caller Callee Notes
Firefox 26.0b8 Windows 8.1 Firefox 26.0b8 Windows 7
Firefox 26.0b8 Windows 8.1 Firefox 26.0b8 Ubuntu 12.04
Firefox 26.0b8 Mac OS X 10.9 Firefox 26.0b8 Windows 8.1
Firefox 26.0b8 Ubuntu 12.04 Firefox 26.0b8 Windows 7
Firefox 26.0b8 Windows 7 Firefox 26.0b8 Mac OS X 10.9
Firefox 26.0b8 Mac OS X 10.9 Firefox 26.0b8 Ubuntu 12.04
Firefox 26.0b8 Windows 7 Chrome stable Windows 8.1
Chrome stable Ubuntu 12.04 Firefox 26.0b8 Windows 8.1
Firefox 26.0b8 Windows 8.1 Chrome stable Mac OS X 10.9
Chrome stable Windows 7 Firefox 26.0b8 Ubuntu 12.04
Chrome stable Mac OS X 10.9 Firefox 26.0b8 Windows 7
Chrome stable Ubuntu 12.04 Firefox 26.0b8 Mac OS X 10.9
Firefox 26.0b8 Windows 8.1 Chrome stable Windows 8.1
Chrome stable Windows 7 Firefox 26.0b8 Windows 7
Firefox 26.0b8 Mac OS X 10.9 Chrome stable Mac OS X 10.8.5
Chrome stable Ubuntu 12.04 Firefox 26.0b8 Ubuntu 12.04

Issues Found

List any new issues found or old issues reopened using the bug number template. These issues will be triaged and escalated by the release leads.

  • bug 943634 - stub installer for he needs to be localized
  • bug 943824 - hi-IN stub installer is only partially localized
  • bug 943832 - hi-IN installer isn't localized
  • bug 943836 - Installers and the browser itself display glyphs instead of actual font type for specific languages
  • bug 943383 - 'Allow now' becomes 'allow and remember' if looking again in the CTP doorhanger
  • bug 943885 - Inaccurate number of downloads is displayed on the download panel.
  • bug 943843 - The download size reported by Firefox is much smaller than the actual size on the disk when download size is not known initially.

Beta 9 (skipped)

Beta 10

Build Info

  • Builds: build1
  • Build ID: 20131202182626
  • Changes: build1

Check List

  • [DONE] Automation (report)
  • [DONE] Regression Testing (report)
  • [DONE] Updates on betatest channel (report)
  • [DONE] Updates on releasetest channel (report)
  • [DONE] Updates on beta channel (report)

Regression Testing

The following areas have been identified for regression testing and will be covered via Moztrap smoketests.

Coverage
  • Tests: Downloads Panel bug 941099, bug 934155, EV certificates bug 917380, TLS (disabled) bug 733647
  • Platforms: Windows XP, Windows 7 64bit, Mac OSX 10.8, Ubuntu 13.10 64-bit
Instructions
  • Select one of the platforms
  • Follow the steps in each of the tests and report your results within Moztrap
  • Make sure to also do some exploratory testing where permitted
  • If you encounter a bug, report it and add it to the list below using the bug number template
Notes
  • The sites tested for the Browsing secure sites and Remove trust for extended validation root certificates tests can be found here.

Issues Found

List any new issues found or old issues reopened using the bug number template. These issues will be triaged and escalated by the release leads.

  • bug 945703 - Pasting a download link into the download manager sometimes fails.
  • bug 945707 - Pausing a download fails when done after a retry

Release Candidate

Build Info

  • Builds: build2
  • Build ID: 20131205075310
  • Changes: build2

Check List

  • [DONE] Automation (report)
  • [DONE] Regression Testing (report)
  • [DONE] Updates on betatest channel (report)
  • [ON TRACK] Updates on releasetest channel (report)
  • [ON TRACK] Updates on beta channel (report)

Regression Testing

The following areas have been identified for regression testing and will be covered via Moztrap smoketests.

Coverage
  • Tests: Breakpad, Partner repack update, Windows share compatibility, Mac OSX signing, Browsing secure sites
  • Platforms: Windows 8.1 64-bit, Windows XP 32-bit, Mac OSX 10.9 (32-bit mode), Ubuntu 13.10 32-bit
Instructions
  • Select one of the platforms
  • Follow the steps in each of the tests and report your results within Moztrap
  • Make sure to also do some exploratory testing where permitted
  • If you encounter a bug, report it and add it to the list below using the bug number template
Notes
  • The list of secure sites tested is available here.

Issues Found

List any new issues found or old issues reopened using the bug number template. These issues will be triaged and escalated by the release leads.

  • bug 947196 - Cannot play video uploaded in google drive
  • bug 947207 - 'Trash' button's label overlaps the menu items on Yahoo Mail

Bug Triage

Query Description Remaining
QAWANTED Bugs requiring immediate investigative assistance 0
VERIFYME Bugs with fixes requiring immediate verification
FIXED Bugs with fixes which should be verified as soon as possible
REGRESSION Bugs requiring identification of the first affected build
UNCONFIRMED Bugs requiring confirmation if they are reproducible in a current build

Known Issues

Bug QA Contact Status
799315 RESOLVED FIXED
745187 NEW
870779 NEW
804580 RESOLVED DUPLICATE
922639 NEW
929067 NEW
931790NEW
832271RESOLVED DUPLICATE
493124 NEW
872413 NEW
856900 NEW
900463 NEW
928379 NEW
799663 Cornel Ionce NEW
865208 Cornel Ionce NEW
Retrieved from 'https://wiki.mozilla.org/index.php?title=Releases/Firefox_26/Test_Plan&oldid=782283'

A faster, more secure and customizable Web browser.

Mozilla Firefox is a fast, light and tidy open source web browser. At its public launch in 2004 Mozilla Firefox was the first browser to challenge Microsoft Internet Explorer’s dominance. Since then, Mozilla Firefox has consistently featured in the top 3 most popular browsers globally and this is set to continue thanks to the release of Firefox 30. The key features that have made Mozilla Firefox so popular are the simple and effective UI, browser speed and strong security capabilities. The browser is particularly popular with developers thanks to its open source development and active community of advanced users.

Easier Browsing

Mozilla put of a lot of resources into creating a simple but effective UI aimed at making browsing quicker and easier. They created the tab structure that has been adopted by most other browsers. In recent years Mozilla has also focused on maximizing browsing area by simplifying toolbar controls to just a Firefox button (which contains settings and options) and back/forward buttons. The URL box features direct Google searching as well as an auto predict/history feature called Awesome Bar. On the right side of the URL box there are bookmarking, history and refresh buttons. To the right of the URL box is a search box which allows you to customize your search engine options. Outside of that a view button controls what you see below the URL. Next to that you have the download history and home buttons.

Speed

Mozilla Firefox boasts impressive page load speeds thanks to the excellent JagerMonkey JavaScript engine. Start up speed and graphics rendering are also among the quickest in the market. Firefox manages complex video and web content using layer-based Direct2D and Driect3D graphics systems. Crash protection ensures only the plugin causing the issue stops working, not the rest of the content being browsed. Reloading the page restarts any affected plugins. The tab system and Awesome Bar have been streamlined to launch/get results very quickly too.

Security

Firefox was the first browser to introduce a private browsing feature which allows you to use the internet more anonymously and securely. History, searches, passwords, downloads, cookies and cached content are all removed on shutdown. Minimizing the chances of another user stealing your identity or finding confidential information. Content security, anti-phishing technology and antivirus/antimalware integration ensures your browsing experience is as safe as possible.

Personalisation & Development

One of the best features of the Firefox UI is customization. Simply right click on the navigation toolbar to customize individual components or just drag and drop items you want to move around. The inbuilt Firefox Add-ons Manager allows you to discover and install add-ons within the browser as well as view ratings, recommendations and descriptions. Read about the top recommended add-ons for Mozilla Firefox on TechBeat. Thousands of customizable themes allow you to customize the look and feel of your browser. Site authors and developers can create advanced content and applications using Mozilla’s open source platform and enhanced API.

  • Firefox keeps getting faster as a result of significant updates to SpiderMonkey, our JavaScript engine, you will now experience improved page load performance by up to 15%, page responsiveness by up to 12%, and reduced memory usage by up to 8%. We have replaced part of the JavaScript engine that helps to compile and display websites for you, improving security and maintainability of the engine at the same time.
  • Firefox introduces HTTPS-Only Mode. When enabled, this new mode ensures that every connection Firefox makes to the web is secure and alerts you when a secure connection is not available. You can enable it in Firefox Preferences.
  • Pinch zooming will now be supported for our users with Windows touchscreen devices and touchpads on Mac devices. Firefox users may now use pinch to zoom on touch-capable devices to zoom in and out of webpages.
  • Picture-in-Picture now supports keyboard shortcuts for fast forwarding and rewinding videos: use the arrow keys to move forward and back 15 seconds, along with volume controls.
  • When you are presenting your screen on a video conference in Firefox, you will see our improved user interface that makes it clearer which devices or displays are being shared.
  • Selecting a search engine at the bottom of the search panel now enters search mode for that engine, allowing you to see suggestions (if available) for your search terms. The old behavior (immediately performing a search) is available with a shift-click.
  • When Firefox autocompletes the URL of one of your search engines, you can now search with that engine directly in the address bar by selecting the shortcut in the address bar results.
  • We’ve added buttons at the bottom of the search panel to allow you to search your bookmarks, open tabs, and history.
  • Firefox supports AcroForm, which will allow you to fill in, print, and save supported PDF forms and the PDF viewer also has a new fresh look.
  • For the recently released Apple devices built with Apple Silicon CPUs, you can use Firefox 83 and future releases without any change. This release (83) will support emulation under Apple’s Rosetta 2 that ships with macOS Big Sur. We are working toward Firefox being natively-compiled for these CPUs in a future release.
  • Screen reader features which report paragraphs now correctly report paragraphs instead of lines in Google Docs.
  • When reading by word using a screen reader, words are now correctly reported when there is punctuation nearby.
  • The arrow keys now work correctly after tabbing in the picture-in-picture window.
  • For users on macOS restoring a session with minimized windows, Firefox now uses much less power and you should see much longer battery life.
  • Developers can use the scroll badge in the Page Inspector to Debug scrollable overflow. Selecting the badge highlights elements that are causing overflow and marks them with the overflow badge.
83.0
11.19.20
Free
English
53.16 MB
Windows 10, Windows 8, Windows 8.1, Windows 7
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