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Drop-down menus not working in Firefox

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

Amanensia
Amanensia
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Hi - about two days ago, I stopped being able to use drop-down menus in websites on Firefox. If I click on a drop-down menu it flickers up briefly and then disappears. This includes drop-down boxes for entering credentials for online banking and so on, but also any similar kind of drop-down menu on any website.

I can usually select an item by typing its first character but obviously this is only useful if I already know what I am going to want to enter.

I do use uBlock and NoScript, but if I disable all Add-ons it doesn't make any difference. I've also tried safe mode, and turning off hardware acceleration, but no effect.

All sites work fine in other browsers.

Any ideas?

Hi - about two days ago, I stopped being able to use drop-down menus in websites on Firefox. If I click on a drop-down menu it flickers up briefly and then disappears. This includes drop-down boxes for entering credentials for online banking and so on, but also any similar kind of drop-down menu on any website. I can usually select an item by typing its first character but obviously this is only useful if I already know what I am going to want to enter. I do use uBlock and NoScript, but if I disable all Add-ons it doesn't make any difference. I've also tried safe mode, and turning off hardware acceleration, but no effect. All sites work fine in other browsers. Any ideas?

All Replies (3)

FredMcD
FredMcD
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Let’s do a full clean re-install;

Note: Firefox comes in three 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 profiles would not be affected.

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) Note: Check Both Folders

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 ++++++++++++++++++++++++++++ Look for, and remove any Mozilla or Firefox program folders. Do not remove the Mozilla Thunderbird folder if there is one.

Do Not remove any profile folders.

After rebooting the computer, run a registry scanner if you have one. Then run the installer. +++++++++++++++++++++++++++ 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

Amanensia
Amanensia Question owner
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Hi, and many thanks for taking the time to reply.

I've deleted all Mozilla and/or Firefox directories from Program Files and Program Files (x86) as suggested, and reinstalled Firefox. Unfortunately this has had no effect.

FredMcD
FredMcD
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Start Firefox in Safe Mode {web link}

A small dialog should appear. Click Start In Safe Mode (not Refresh). Is the problem still there?