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Add-ons won't download

  • 2 replies
  • 1 has this problem
  • 4 views
  • Last reply by FredMcD

robbyrobwflores
robbyrobwflores
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My add-ons won't download at all. None of them - no matter LastPass or Ghostery or NoScript. I keep getting an error downloading message - screenshot attached. Note that I used to use Firefox and these add-ons, then I switched to Edge, now I am trying to use Firefox again and these add-ons won't download. Please help. Thanks. -Rob

My add-ons won't download at all. None of them - no matter LastPass or Ghostery or NoScript. I keep getting an error downloading message - screenshot attached. Note that I used to use Firefox and these add-ons, then I switched to Edge, now I am trying to use Firefox again and these add-ons won't download. Please help. Thanks. -Rob
Attached screenshots

Modified by robbyrobwflores

All Replies (2)

Paul
Paul
  • Top 25 Contributor
  • Moderator
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Hello,

The Refresh feature (called "Reset" in older Firefox versions) can fix many issues by restoring Firefox to its factory default state while saving your bookmarks, history, passwords, cookies, and other essential information.

Note: When you use this feature, you will lose any extensions, toolbar customizations, and some preferences. See the Refresh Firefox - reset add-ons and settings article for more information. Whilst this will mean you will have to reinstall many add-ons, it may fix the underlying problem that is causing the issue installing new add-ons.

To Refresh Firefox:

  1. Open the Troubleshooting Information page using one of these methods:
    • Click the menu button New Fx Menu, click help Help-29 and select Troubleshooting Information. A new tab containing your troubleshooting information should open.
    • If you're unable to access the Help menu, type about:support in your address bar to bring up the Troubleshooting Information page.
  2. At the top right corner of the page, you should see a button that says "Refresh Firefox" ("Reset Firefox" in older Firefox versions). Click on it.
  3. Firefox will close. After the refresh process is completed, Firefox will show a window with the information that is imported.
  4. Click Finish and Firefox will reopen.

Did this fix the problem? Please report back to us!

Thank you.

FredMcD
FredMcD
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Was there an error page for the download itself?

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

Type about:support in the address bar and press enter.

Under the page logo on the left side, you will see Application Basics. Under this find Profile Folder. To its right press the button Show Folder. This will open your file browser to the current Firefox profile. Now Close Firefox.

Delete all extensions files and compatibility.ini in the Firefox profile folder to reset the extensions registry.

New files will be created when required.

After, restart Firefox.

See "Corrupt extension files":

You will have to approve the updating one last time.