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My Firefox has just automatically updated itself to version 42. The extention page under add-ons does not show the extensions I have installed.

  • 6 replies
  • 3 have this problem
  • 2 views
  • Last reply by FredMcD

philipgr
philipgr
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My Firefox has just automatically updated itself to version 42. The extention page under add-ons does not show the extensions I have installed. The plug in page shows the plug ins I have installed. How do I fix this? This happened on my Windows 7 64 bit partition. I installed the ' Classic Add-On' extension to see if it would fix the issue. Sadly it did not. I have a screenshot. I am unsure if I am permitted to upload it to the media gallery. I also use Linux but I have not done an upgrade therein yet.

My Firefox has just automatically updated itself to version 42. The extention page under add-ons does not show the extensions I have installed. The plug in page shows the plug ins I have installed. How do I fix this? This happened on my Windows 7 64 bit partition. I installed the ' Classic Add-On' extension to see if it would fix the issue. Sadly it did not. I have a screenshot. I am unsure if I am permitted to upload it to the media gallery. I also use Linux but I have not done an upgrade therein yet.
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Chosen solution

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

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

New files will be created when required.

See "Corrupt extension files":

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All Replies (6)

FredMcD
FredMcD
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Chosen Solution

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

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

New files will be created when required.

See "Corrupt extension files":

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 25 Contributor
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If the problem recurs after renaming those files, do you have the BetterPrivacy extension, the one that removes "Flash cookies"? There seems to be a problem in Firefox 42 related to this corruption of the extensions file(s). You may need to remove it for now.

philipgr
philipgr Question owner
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Hi FredMcD

Thank you your solution worked perfectly and thank you for helping me.

Regards Philip

philipgr
philipgr Question owner
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Hi jscher2000

Thank you for your response. I checked all my add-ons after they re-installed and I do not have the BetterPrivacy extenxion. I have made a note not to install it.

Regards Philip

philipgr
philipgr Question owner
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Hi

I thought I would mention that I later found that I could not bookmark any new changes to customize any of the toolbars. I installed FEBE and backed up my extentions. I then followed the advise in this post: https://support.mozilla.org/en-US/kb/changes-toolbars-and-window-sizes-are-not-saved

and then restored by extentions via FEBE. Everything is working now. I have had the bookmark issue a few times.

Regards Philip

FredMcD
FredMcD
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Glad to help. Safe Surfing.