Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

This address isn't valid

  • 1 reply
  • 33 have this problem
  • 13 views
  • Last reply by cor-el

bridgeld
bridgeld
more options

when I click on the Firefox icon the Firefox page won't load. I get the error message that says "The address isn't valid" Undernieth It says The URL is not valid and can't be loaded. I don't know why the browser won't open it had worked up until yesturday.

when I click on the Firefox icon the Firefox page won't load. I get the error message that says "The address isn't valid" Undernieth It says The URL is not valid and can't be loaded. I don't know why the browser won't open it had worked up until yesturday.

All Replies (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).

  • Do NOT click the Reset button on the Safe Mode start window or otherwise make changes.

You can use one of these to start Firefox in Safe Mode:

  • On Windows, hold down the Shift key while starting Firefox with a double-click on the Firefox desktop shortcut
  • On Mac, hold down the Options key while starting Firefox
  • Help > Restart with Add-ons Disabled

You can check for problems with preferences and rename or delete the prefs.js file and possible numbered prefs-##.js files and a possible user.js file to reset all prefs to the default value.