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Why do i keep getting an Alert message saying "The URL is not valid and cannot be loaded "?

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  • 14 have this problem
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  • Last reply by cor-el

Skipper279
Skipper279
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Why do i keep getting an Alert message saying "The URL is not valid and cannot be loaded "?

This happens a lot regardless of the web page. I continually have to restart FF and it persists still

Why do i keep getting an Alert message saying "The URL is not valid and cannot be loaded "? This happens a lot regardless of the web page. I continually have to restart FF and it persists still

All Replies (1)

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

  • Don't make any changes on the Safe mode start window.

See:

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")