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Add-ons Hidden in Update to Firefox 12.0 beta

Posted

After looking through the forums, this seems to be identical to the issue relating to a Firefox 7 update. However, all the tools to bring back the add-ons have been taken down as the problem was fixed in 7.0.1.

Is there a way to solve this problem in Firefox 12? All my add-ons appear to be functioning correctly (NoScript, TMP, etc.) and I can even access the prefs for those that put a link to them in the Tools menu or I have placed on the address bar via a button. But they do not appear in the about:add-ons window which reports that "You have any add-ons of this type installed."

After looking through the forums, this seems to be identical to the issue relating to a Firefox 7 update. However, all the tools to bring back the add-ons have been taken down as the problem was fixed in 7.0.1. Is there a way to solve this problem in Firefox 12? All my add-ons appear to be functioning correctly (NoScript, TMP, etc.) and I can even access the prefs for those that put a link to them in the Tools menu or I have placed on the address bar via a button. But they do not appear in the about:add-ons window which reports that "You have any add-ons of this type installed."

Chosen solution

It is possible that there is a problem with the file(s) that store the extensions registry.

Delete the files extensions.* (e.g. extensions.sqlite, extensions.ini, extensions.cache) and compatibility.ini in the Firefox profile folder to reset the extensions registry.

New files will be created when required.

See "Corrupt extension files":

If you see disabled, not compatible, extensions in "Tools > Add-ons > Extensions" then click the Tools button at the left side of the Search Bar (or click the "Find Updates" button in older Firefox versions) to do a compatibility check or see if there is a compatibility update available.

Read this answer in context 1

Additional System Details

Installed Plug-ins

  • Shockwave Flash 11.2 r202
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in web pages. For more information, visit the QuickTime Web site.
  • 5.0.61118.0
  • Displays Java applet content, or a placeholder if Java is not installed.
  • The Flip4Mac WMV Plugin allows you to view Windows Media content using QuickTime.
  • Microsoft Office for Mac SharePoint Browser Plug-in
  • Office Live Update v1.0

Application

  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:12.0) Gecko/20100101 Firefox/12.0

More Information

Application Basics
Name
Firefox
Version
12.0
User Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:12.0) Gecko/20100101 Firefox/12.0
Profile Directory
Show in Finder
Enabled Plugins
about:plugins
Build Configuration
about:buildconfig
Crash Reports
about:crashes
Memory Use
about:memory
Extensions
Name
Version
Enabled
ID
Important Modified Preferences
Name
Value
accessibility.typeaheadfind.flashBar
0
browser.cache.disk.capacity
1024000
browser.cache.disk.smart_size.enabled
false
browser.cache.disk.smart_size.first_run
false
browser.cache.disk.smart_size_cached_value
1048576
browser.cache.memory.capacity
1024000
browser.places.importBookmarksHTML
false
browser.places.smartBookmarksVersion
2
browser.startup.homepage
about:blank
browser.startup.homepage_override.buildID
20120403211507
browser.startup.homepage_override.mstone
rv:12.0
browser.tabs.closeWindowWithLastTab
false
browser.tabs.loadFolderAndReplace
false
browser.tabs.tabMaxWidth
120
browser.tabs.tabMinWidth
87
browser.tabs.warnOnClose
false
dom.disable_window_move_resize
true
extensions.checkCompatibility.12.0
false
extensions.lastAppVersion
12.0
font.language.group
x-western
font.size.variable.x-western
14
network.cookie.cookieBehavior
1
network.cookie.prefsMigrated
true
places.database.lastMaintenance
1333001819
places.history.expiration.transient_current_max_pages
100664
places.history.expiration.transient_optimal_database_size
161061272
print.macosx.pagesetup-2
PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz4KPCFET0NUWVBFIHBsaXN0IFBVQkxJQyAiLS8vQXBwbGUvL0RURCBQTElTVCAxLjAvL0VO…
privacy.cpd.extensions-tabmix
false
privacy.sanitize.migrateFx3Prefs
true
privacy.sanitize.timeSpan
4
security.disable_button.openCertManager
false
security.warn_viewing_mixed
false
Graphics
Vendor ID
0x10de
Device ID
0x 8a0
WebGL Renderer
NVIDIA Corporation -- NVIDIA GeForce 320M OpenGL Engine -- 2.1 NVIDIA-7.18.11
GPU Accelerated Windows
1/1 OpenGL
AzureBackend
quartz

cor-el
  • Top 10 Contributor
  • Moderator
17682 solutions 159967 answers

Chosen Solution

It is possible that there is a problem with the file(s) that store the extensions registry.

Delete the files extensions.* (e.g. extensions.sqlite, extensions.ini, extensions.cache) and compatibility.ini in the Firefox profile folder to reset the extensions registry.

New files will be created when required.

See "Corrupt extension files":

If you see disabled, not compatible, extensions in "Tools > Add-ons > Extensions" then click the Tools button at the left side of the Search Bar (or click the "Find Updates" button in older Firefox versions) to do a compatibility check or see if there is a compatibility update available.

It is possible that there is a problem with the file(s) that store the extensions registry. Delete the files extensions.* (e.g. extensions.sqlite, extensions.ini, extensions.cache) and compatibility.ini in the Firefox profile folder to reset the extensions registry. *https://support.mozilla.org/kb/Profiles New files will be created when required. See "Corrupt extension files": *http://kb.mozillazine.org/Unable_to_install_themes_or_extensions *https://support.mozilla.org/kb/Unable+to+install+add-ons If you see disabled, not compatible, extensions in "Tools > Add-ons > Extensions" then click the Tools button at the left side of the Search Bar (or click the "Find Updates" button in older Firefox versions) to do a compatibility check or see if there is a compatibility update available.

Question owner

Deleting the database files fixed everything after approving the reinstall of all the extensions. Thanks!

Deleting the database files fixed everything after approving the reinstall of all the extensions. Thanks!
cor-el
  • Top 10 Contributor
  • Moderator
17682 solutions 159967 answers

You're welcome

You're welcome
jwarthurs 0 solutions 5 answers

Recently updated to 12 (release), and the same thing is happening. Only two of my add-ons appear in the "Extensions" tab on the Add-on manager. I tried to delete the files listed above, but no change. I can see from my folder that the add-ons are in there somewhere!

Recently updated to 12 (release), and the same thing is happening. Only two of my add-ons appear in the "Extensions" tab on the Add-on manager. I tried to delete the files listed above, but no change. I can see from my folder that the add-ons are in there somewhere!