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under tools menu, when i click on "settings", i get a new web page which indicates unable to open

  • 2 replies
  • 1 has this problem
  • 9 views
  • Last reply by cor-el

Ronald1958
Ronald1958
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This is the response I get:

The address isn't valid

The URL is not valid and cannot be loaded. 

   Web addresses are usually written like http://www.example.com/
   Make sure that you're using forward slashes (i.e. /).

I am using windows 10 with firefox

This is the response I get: The address isn't valid The URL is not valid and cannot be loaded. Web addresses are usually written like http://www.example.com/ Make sure that you're using forward slashes (i.e. /). I am using windows 10 with firefox

All Replies (2)

Adrian C.Y. Fu
Adrian C.Y. Fu
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What is the address or URL that you typed in?

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
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Start Firefox in Safe Mode to check if one of the extensions (3-bar Menu button/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.

  • Switch to the DEFAULT theme: 3-bar Menu button/Tools > Add-ons > Appearance
  • Do NOT click the Reset button on the Safe Mode start window

Do a clean reinstall and delete the Firefox program folder before (re)installing a fresh copy of the current Firefox release.

If possible uninstall your current Firefox version to cleanup the Windows registry and settings in security software.

  • Do NOT remove "personal data" when you uninstall your current Firefox version, because this will remove all profile folders and you lose personal data like bookmarks and passwords including data in profiles created by other Firefox versions.

Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.

  • (32 bit Windows) "C:\Program Files\Mozilla Firefox\"
  • (64 bit Windows) "C:\Program Files (x86)\Mozilla Firefox\"

Your personal data like bookmarks is stored in the Firefox profile folder, so you won't lose personal data when you uninstall and (re)install or update Firefox, but make sure NOT to remove personal data when you uninstall Firefox as that will remove all Firefox profile folders and you lose your personal data.

If you keep having problems then create a new profile.