What’s New in Firefox
The latest version of Firefox (9.0.1) has the following changes:
Added Type Inference, significantly improving JavaScript performance
Improved theme integration for Mac OS X Lion
Added two finger swipe navigation for Mac OS X Lion
Added support for querying Do Not Track status via JavaScript
Added support for font-stretch
Improved support for text-overflow
Improved standards support for HTML5, MathML, and CSS
Fixed several stability issues
Fixed several security issues
Please see thecomplete list of changes in this version. Web and extension developers should also view the curated list of platform changes. You may also be interested in thelist of changes in the previous version.
Note: External parties tracking Firefox release uptake should be aware that we manage and monitor the rate of automatic updates to ensure a smooth release. Users can always manually check for updates from the About Firefox window to see whether they are up to date.
Known issues
This list covers some of the known problems with Firefox which will be resolved in future versions:
All Systems
Users of the Twitter search plugin may see Twitter appear in the search provider list multiple times (see bug 690658)
Choosing the "Pop out" menu item while watching fullscreen YouTube videos may cause Firefox to hang (see bug 675645)
Roundcube, webmail software used by many hosting companies, incorrectly displays an ellipses in place of long email titles. The Roundcube team has been notified of the issue (see bug 680610)
Firefox will now display a corrupted content error when it detects certain types of misconfigured servers. This is not a Firefox issue, please contact the website owner (see bug 681140)
For some users, scrolling in the main GMail window will be slower than usual (see bug 579260)
If you try to start Firefox using a locked profile, it will crash (see bug 573369)
Microsoft Windows
Some users of Adobe Reader X have experienced instability when viewing PDF documents in the browser. Uninstalling and reinstalling Adobe Reader X has been determined to resolve the issue (see bug 640901)
Some ALPS touchpad drivers break scrolling in Firefox. A workaround has been identified (see bug 605357)
Mac OS X
Some users may observe missing icons in the History and Bookmarks menus (see bug 705516)
For some users, the preference dialog is not shown and a rendering error (in the form of a white square) is shown instead. This is caused an add-on incorrectly setting Firefox preferences (see bug 641288)
Users running Mac OS X 10.7 may see a crash when the file chooser dialog is shown. Apple has been notified of the issue (see bug 670842)
This version of Firefox will not work on Macintosh hardware with Power PC CPUs (see bug 587799)
Linux and Unix
The video control buttons may not work when viewing QuickTime videos with libtotem (see bug 625036)
Users compiling from source might need a newer gcc and libstdc++ as the build requirements have changed (seebug 578880)
Troubleshooting
Poorly designed or incompatible extensions can cause problems with your browser, including make it crash, slow down page display, etc. If you encounter strange problems relating to parts of the browser no longer working, the browser not starting, windows with strange or distorted appearance, degraded performance, etc, you may be suffering from Extension or Theme trouble. Restart the browser in Safe Mode. On Windows, start using the "Safe Mode" shortcut created in your Start menu or by running firefox.exe -safe-mode. On Linux, start with ./firefox -safe-mode and on Mac OS X, run:
cd /Applications/Firefox.app/Contents/MacOS/
./firefox-bin -safe-mode
When started in Safe Mode all extensions are disabled and the Default theme is used. Disable the Extension/Theme that is causing trouble and then start normally.
If you uninstall an extension that is installed with your user profile (i.e. you installed it from a Web page) and then wish to install it for all user profiles using the -install-global-extension command line flag, you must restart the browser once to cleanse the profile extensions datasource of traces of that extension before installing with the switch. If you do not do this you may end up with a jammed entry in the Extensions list and will be unable to install the extension globally.
If you encounter strange problems relating to bookmarks, downloads, window placement, toolbars, history, or other settings, it is recommended that you try creating a new profile and attempting to reproduce the problem before filing bugs. Create a new profile by running Firefox with the -P command line argument, choose the "Manage Profiles" button and then choose "Create Profile...". Migrate your settings files (Bookmarks, Saved Passwords, etc) over one by one, checking each time to see if the problems resurface. If you do find a particular profile data file is causing a problem, file a bug and attach the file.
thank you
'''What’s New in Firefox'''
The latest version of Firefox (9.0.1) has the following changes:
Added [http://blog.mozilla.com/futurereleases/2011/11/10/type-inference-to-firefox-beta/ Type Inference], significantly improving JavaScript performance
Improved theme integration for Mac OS X Lion
Added two finger swipe navigation for Mac OS X Lion
Added support for querying [https://developer.mozilla.org/en/DOM/navigator.doNotTrack Do Not Track status via JavaScript]
Added support for [https://developer.mozilla.org/en/CSS/font-stretch font-stretch]
Improved support for [https://developer.mozilla.org/en/CSS/text-overflow text-overflow]
Improved standards support for HTML5, MathML, and CSS
Fixed several stability issues
Fixed several [http://www.mozilla.org/security/known-vulnerabilities/firefox.html#firefox9 security issues]
Please see the[http://www.mozilla.org/en-US/firefox/9.0.1/releasenotes/buglist.html complete list of changes] in this version. Web and extension developers should also view the [https://developer.mozilla.org/en/Firefox_9_for_developers curated list of platform changes]. You may also be interested in the[http://www.mozilla.org/en-US/firefox/8.0/releasenotes/ list of changes] in the previous version.
Note: External parties tracking Firefox release uptake should be aware that we manage and monitor the rate of automatic updates to ensure a smooth release. Users can always manually check for updates from the About Firefox window to see whether they are up to date.
-----------------------------------------------------------------------------------------
'''Known issues'''
This list covers some of the known problems with Firefox which will be resolved in future versions:
All Systems
Users of the Twitter search plugin may see Twitter appear in the search provider list multiple times (see [https://bugzilla.mozilla.org/show_bug.cgi?id=690658 bug 690658])
Choosing the "Pop out" menu item while watching fullscreen YouTube videos may cause Firefox to hang (see bug [https://bugzilla.mozilla.org/show_bug.cgi?id=675645 675645])
Roundcube, webmail software used by many hosting companies, incorrectly displays an ellipses in place of long email titles. The Roundcube team has been notified of the issue (see [https://bugzilla.mozilla.org/show_bug.cgi?id=680610 bug 680610])
Firefox will now display a corrupted content error when it detects certain types of misconfigured servers. This is not a Firefox issue, please contact the website owner (see [https://bugzilla.mozilla.org/show_bug.cgi?id=681140 bug 681140)]
For some users, scrolling in the main GMail window will be slower than usual (see [https://bugzilla.mozilla.org/show_bug.cgi?id=579260 bug 579260])
If you try to start Firefox using a locked profile, it will crash (see [https://bugzilla.mozilla.org/show_bug.cgi?id=573369 bug 573369])
Microsoft Windows
Some users of Adobe Reader X have experienced instability when viewing PDF documents in the browser. Uninstalling and reinstalling Adobe Reader X has been determined to resolve the issue (see [https://bugzilla.mozilla.org/show_bug.cgi?id=640901 bug 640901])
Some ALPS touchpad drivers break scrolling in Firefox. A workaround has been identified (see [https://bugzilla.mozilla.org/show_bug.cgi?id=605357 bug 605357])
Mac OS X
Some users may observe missing icons in the History and Bookmarks menus (see [https://bugzilla.mozilla.org/show_bug.cgi?id=705516 bug 705516])
For some users, the preference dialog is not shown and a rendering error (in the form of a white square) is shown instead. This is caused an add-on incorrectly setting Firefox preferences (see [https://bugzilla.mozilla.org/show_bug.cgi?id=641288 bug 641288])
Users running Mac OS X 10.7 may see a crash when the file chooser dialog is shown. Apple has been notified of the issue (see [https://bugzilla.mozilla.org/show_bug.cgi?id=670842 bug 670842])
This version of Firefox will not work on Macintosh hardware with Power PC CPUs (see [https://bugzilla.mozilla.org/show_bug.cgi?id=587799 bug 587799])
Linux and Unix
The video control buttons may not work when viewing QuickTime videos with libtotem (see [https://bugzilla.mozilla.org/show_bug.cgi?id=625036 bug 625036])
Users compiling from source might need a newer gcc and libstdc++ as the build requirements have changed (see[https://bugzilla.mozilla.org/show_bug.cgi?id=578880 bug 578880])
------------------------------------------------------------------------------------------
'''Troubleshooting
'''
Poorly designed or incompatible extensions can cause problems with your browser, including make it crash, slow down page display, etc. If you encounter strange problems relating to parts of the browser no longer working, the browser not starting, windows with strange or distorted appearance, degraded performance, etc, you may be suffering from Extension or Theme trouble. Restart the browser in Safe Mode. On Windows, start using the "Safe Mode" shortcut created in your Start menu or by running firefox.exe -safe-mode. On Linux, start with ./firefox -safe-mode and on Mac OS X, run:
cd /Applications/Firefox.app/Contents/MacOS/
./firefox-bin -safe-mode
When started in Safe Mode all extensions are disabled and the Default theme is used. Disable the Extension/Theme that is causing trouble and then start normally.
If you uninstall an extension that is installed with your user profile (i.e. you installed it from a Web page) and then wish to install it for all user profiles using the -install-global-extension command line flag, you must restart the browser once to cleanse the profile extensions datasource of traces of that extension before installing with the switch. If you do not do this you may end up with a jammed entry in the Extensions list and will be unable to install the extension globally.
If you encounter strange problems relating to bookmarks, downloads, window placement, toolbars, history, or other settings, it is recommended that you try creating a new profile and attempting to reproduce the problem before filing bugs. Create a new profile by running Firefox with the -P command line argument, choose the "Manage Profiles" button and then choose "Create Profile...". Migrate your settings files (Bookmarks, Saved Passwords, etc) over one by one, checking each time to see if the problems resurface. If you do find a particular profile data file is causing a problem, file a bug and attach the file.
thank you