Issues with Firefox: Difference between revisions

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This  list of the more frequently-encountered issues or problems with Firefox is organized by subject and may include links to MozillaZine forum topics and other external sources in addition to Knowledge Base articles.  It is not a complete list of Firefox issues.  If you don't find an answer below,  you can browse all articles in the [[:Category:Issues (Firefox)]],  use the Knowledge Base Search function, or look through the official list of known issues found in the [http://www.mozilla.com/firefox/releases/ Firefox release notes].
This  list of the more frequently-encountered issues or problems with Firefox is organized by subject and may include links to MozillaZine forum topics and other external sources in addition to Knowledge Base articles.  It is not a complete list of Firefox issues.  If you don't find an answer below,  you can browse all articles in the [[:Category:Issues (Firefox)]],  use the Knowledge Base Search function, or look through the official list of known issues found in the [http://www.mozilla.org/firefox/releases/ Firefox release notes].
   
   
===General===
===General===
* [[Browser will not start up|Firefox will not start up]]  
* [[Browser will not start up|Firefox will not start up]]  
* [[Application fails to start because js3250.dll was not found| Firefox fails to start because js3250.dll or other files are not found]]   
* [[This application has failed to start because js3250.dll was not found| Firefox fails to start because js3250.dll or other files are not found]]   
* [[Error loading websites]]
* [[Error loading websites]]
* [[Problems printing web pages]] (more [http://forums.mozillazine.org/viewtopic.php?t=450885  here])
* [[Problems printing web pages]] (more [http://forums.mozillazine.org/viewtopic.php?t=450885  here])
* [[Profile in use|  Firefox says my profile is in use or that it is "already running but is not responding"]]
* [[Profile in use|  Firefox says my profile is in use or that it is "already running but is not responding"]]
* [[Lost bookmarks |All my bookmarks are gone]] or I [[Bookmarks not saved | can't save new bookmarks]]
* [[Firefox hangs | Firefox hangs, freezes or stops responding]]
* [[Firefox hangs | Firefox hangs, freezes or stops responding]]
* [[Firefox CPU usage]]
* [[Firefox CPU usage]]
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* Problems [[uninstalling extensions]] and [http://forums.mozillazine.org/viewtopic.php?t=410166 removing "*.xpi" or "ghost" entries from the Extensions list]
* Problems [[uninstalling extensions]] and [http://forums.mozillazine.org/viewtopic.php?t=410166 removing "*.xpi" or "ghost" entries from the Extensions list]
* [[Distro does security fix | Your Linux distributor releases a patched Firefox but the Firefox website wants to force you to update]]
* [[Distro does security fix | Your Linux distributor releases a patched Firefox but the Firefox website wants to force you to update]]
===Bookmarks and browsing history===
* [[Lost bookmarks |All my bookmarks are gone]]
* I [[Bookmarks not saved | can't save new bookmarks]]
* [[Unable to export bookmarks to HTML file - Firefox|I can't export bookmarks to an HTML file]]
* When I try to restore a bookmark backup I get the error,  [[Unable to process the backup file - Firefox|Unable to process the backup file]].
* [[Bookmarks history and toolbar buttons not working - Firefox|Bookmarks and browsing history are not working, back/forward toolbar buttons are disabled]]


===User interface===
===User interface===
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*"Do this automatically" grayed-out or not remembered and other issues with [[file types and download actions]]
*"Do this automatically" grayed-out or not remembered and other issues with [[file types and download actions]]
*[[Opening files using plugins]]
*[[Opening files using plugins]]
*[http://forums.mozillazine.org/viewtopic.php?f=38&t=1025605 Opening files from the Downloads window]
* [http://forums.mozillazine.org/viewtopic.php?f=38&t=1329015 "Open File - Security Warning"] on Windows, when launching saved downloads (more [http://blog.case.edu/bes7/2009/06/18/remove_the_security_warning_on_files_downloaded_with_firefox_30_and_35 here]).
* [[:Category:Downloads_-_Firefox |Other Firefox file-opening and download issues]]
* [[:Category:Downloads_-_Firefox |Other Firefox file-opening and download issues]]


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* "[[SSL is disabled]]" message
* "[[SSL is disabled]]" message
* "[[Could not initialize the browser security component|Could not initialize the browser's security component]]" message.
* "[[Could not initialize the browser security component|Could not initialize the browser's security component]]" message.
* Other [[Error loading secure sites|errors loading secure sites]]
* [[Links to local pages do not work]]
* [[Links to local pages do not work]]
* [http://www.mozilla.org/projects/netlib/PortBanning.html "Access to the port number given has been disabled for security reasons."]
* [http://www.mozilla.org/projects/netlib/PortBanning.html "Access to the port number given has been disabled for security reasons."]
   
   
===Other===
===Other===
* [http://forums.mozillazine.org/viewtopic.php?f=38&t=934345 Jar:File not found error] ("Firefox can't find the file at jar:file:///C:/Program Files/Mozilla Firefox/chrome/en-US.jar!...")
* [[Windows error opening Internet shortcut or local HTML file - Firefox |"Windows cannot find ..." error message (or extra tab/window) when opening Internet shortcut or local HTML file]]   
* [[Windows error opening Internet shortcut or local HTML file - Firefox |"Windows cannot find ..." error message (or extra tab/window) when opening Internet shortcut or local HTML file]]   
* [[Uninstalling breaks file type associations or icons]]
* [[Uninstalling breaks file type associations or icons]]
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* [[Addresses entered in IE open in Firefox]]
* [[Addresses entered in IE open in Firefox]]
* [[XPCOM:EventReceiver is not responding message on system shutdown]]
* [[XPCOM:EventReceiver is not responding message on system shutdown]]
* [http://support.mozilla.com/tiki-view_forum_thread.php?forumId=1&comments_parentId=59619 Deleting Firefox profile via Profile Manager removes non-Mozilla files] (more [http://forums.mozillazine.org/viewtopic.php?t=656192 here]).
* [http://forums.mozillazine.org/viewtopic.php?t=656192 Deleting Firefox profile via Profile Manager removes non-Mozilla files]


==See also==
==See also==

Latest revision as of 03:21, 30 December 2011

This list of the more frequently-encountered issues or problems with Firefox is organized by subject and may include links to MozillaZine forum topics and other external sources in addition to Knowledge Base articles. It is not a complete list of Firefox issues. If you don't find an answer below, you can browse all articles in the Category:Issues (Firefox), use the Knowledge Base Search function, or look through the official list of known issues found in the Firefox release notes.

General

Installation and updates

Bookmarks and browsing history

User interface

Downloading opening or saving files

Problems with specific websites or web features

Privacy and security

Other

See also

Firefox FAQs