How is it when I click on the menu of the Applications in the Options screen, Firefox crashes?

Whenever I open the tab Options in Firefox, I can access all items with the exception of the Applications menu. When I click on the Applications menu, Firefox freezes and the only way to fix is to open the Task Manager window and force a shutdown of Firefox. I use the latest version of Firefox and the updates of Windows 10.

It is normal to have a slight delay, while Firefox generates the list. If you wait more than 10 seconds, there may be a problem with the settings file that Firefox is reading.

As it is difficult to change, when there is a problem, we offer usually when you rename the file and allows Firefox to rebuild the Windows registry. Here's how:

Open the settings folder (AKA Firefox profile) current Firefox help

  • button "3-bar" menu > "?" button > troubleshooting information
  • (menu bar) Help > troubleshooting information
  • type or paste everything: in the address bar and press Enter

In the first table of the page, click on the view file"" button. This should launch a new window that lists the various files and folders in Windows Explorer.

Leave this window open, switch back to Firefox and output, either:

  • "3-bar" menu button > button "power".
  • (menu bar) File > Exit

Break while Firefox finishing his cleaning, then rename the mimeTypes.rdf to mimeTypes.old (or another name of your choice, in the case where you decide to roll back this experience).

Launch Firefox back up again and return to the Options page to specify your preference. The list will load?

Tags: Firefox

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