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Clicking 'Add-ons' menu does not open

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

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This is happening more and more, and becoming increasingly frustrating.

Here is the problem. After using Firefox Quantum for a short while, I will check the 'Add-ons' menu to see if there are any updates for my add-ons, but the menu does not open. Other menu options open without issue.

I have to restart the browser to access the 'Add-ons' menu. This is only successful for a time, as the problem of not being able to open this menu resurfaces.

This is happening more and more, and becoming increasingly frustrating. Here is the problem. After using Firefox Quantum for a short while, I will check the 'Add-ons' menu to see if there are any updates for my add-ons, but the menu does not open. Other menu options open without issue. I have to restart the browser to access the 'Add-ons' menu. This is only successful for a time, as the problem of not being able to open this menu resurfaces.

All Replies (3)

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Have you tried;

Type about:addons<enter> in the address bar to open your Add-ons Manager.

Hot key; <Control> (Mac=<Command>) <Shift> A)


Let’s do a full clean re-install;

Download Firefox For All languages And Systems {web link}

Save the file. Then Close Firefox.

Using your file browser, open the Programs Folder on your computer.

Windows: C:\Program Files C:\Program Files (x86)

Mac: Open the "Applications" folder. https://support.mozilla.org/en-US/kb/how-download-and-install-firefox-mac

Linux: Check your user manual. If you installed Firefox with the distro-based package manager, you should use the same way to uninstall it. See Install Firefox on Linux; https://support.mozilla.org/en-US/kb/install-firefox-linux

If you downloaded and installed the binary package from the Firefox download page, simply remove the folder Firefox in your home directory. http://www.mozilla.org/firefox#desktop ++++++++++++++++++++++++++++ Do Not remove the profiles folder.

Look for, and rename any Mozilla or Firefox program folders by adding .old to them. Do not rename the Mozilla Thunderbird folder if there is one.

After rebooting the computer, run a registry scanner if you have one. Then run the installer. If all goes well, remove the OLD folders when you are done. +++++++++++++++++++++++++++ If there is a problem, start your Computer in safe mode and try again.

http://encyclopedia2.thefreedictionary.com/Linux+Safe+Mode This shows how to Start all Computers in Safe Mode; Free Online Encyclopedia

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When the issue presents itself, the about:addons page displays okay, but the shortcut Ctrl+Shift+A does not.

I rebooted the system first of all and that appeared to resolve the issue, but unfortunately after prolonged use, it has returned.

My system is complete clean installation of Windows 10 Fall Creators Update, so not sure a reinstall would work (willing to try though).

In case of interest, I only have two addons installed: Adblock Plus and NoScript.

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Firefox comes in two or more folders on all computers. They are;

Maintenance: (Programs Folder) <Windows Only> Firefox itself: (Programs Folder) And two folders in the profile of each user on the computer for each Firefox profile for that user.

If you remove the Firefox folder, the user folders would not be affected.


Many have reported issues using the 64bit Firefox. Install the 32bit version from; Download Firefox For All languages And Systems {web link}