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I get a "URL is invalid and cannot be loaded" message, and will not load any web pages

  • 1 reply
  • 4 have this problem
  • 6 views
  • Last reply by cor-el

ANGMEM
ANGMEM
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I use Firefox to get onto the internet but when the Firefox page comes up I get a small pop up on the screen that says "URL is not valid and cannot be loaded". I try to type what I am searching for in the google or yahoo search bar and this same pop up still occurs. I cannot go on any websites at all. Help!

I use Firefox to get onto the internet but when the Firefox page comes up I get a small pop up on the screen that says "URL is not valid and cannot be loaded". I try to type what I am searching for in the google or yahoo search bar and this same pop up still occurs. I cannot go on any websites at all. Help!

All Replies (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
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Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).

If it does work in Safe-mode then disable all extensions and then try to find which is causing it by enabling one at a time until the problem reappears.

  • Use "Disable all add-ons" on the Safe mode start window to disable all extensions.
  • Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")

In Firefox 4 you can use one of these to start in Safe mode:

  • Help > Restart with Add-ons Disabled
  • Hold down the Shift key while double clicking the Firefox desktop shortcut (Windows)