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Why do I keep getting an error message that reads "The URL is not valid and cannot be loaded."

  • 2 cavab
  • 6 have this problem
  • 5 views
  • Last reply by gatesspam

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Whenever I click on a link that opens a new tab using "about:tab", an error pops up. The error box is titled "Alert" and the message reads "The URL is not valid and cannot be loaded."

However, once I click OK, the page loads just fine. At first, I thought it might be one of my add-ons (Iuse a bunch), but it still occurs after restarting in Safe Mode. Any thoughts?

I can even create the problem without clicking on a link inside a page if I simply type about:tab in the address bar.

I am using Firefox 12.0

Whenever I click on a link that opens a new tab using "about:tab", an error pops up. The error box is titled "Alert" and the message reads "The URL is not valid and cannot be loaded." However, once I click OK, the page loads just fine. At first, I thought it might be one of my add-ons (Iuse a bunch), but it still occurs after restarting in Safe Mode. Any thoughts? I can even create the problem without clicking on a link inside a page if I simply type about:tab in the address bar. I am using Firefox 12.0

All Replies (2)

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The problem has something to do with the setting to do with the setting on how to handle links that open in a new window.

SETTING TITLE: Open links that open in a new window in:

OPTIONS: New Tab; New Window; Current Tab

The problem does not occur if I select New Window or Current Tab. It does occur if I select New Tab.

Modified by gatesspam

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Wow! I actually solved this on my own. I didn't find any thread that helped, but after reading a few, I figured poking around in about.config would help... and it did!

Here is how I solved the problem:

  1. Typed about:config in address bar.
  2. When I got to the warning about voiding the warranty, clicked I'll be careful, I promise!
  3. I found the setting entitled browser.newtabl.url (use the Search: box).
  4. I double-clicked on the entry entitled browser.newtabl.url and deleted the info in the value portion.
  5. Clicked OK.
  6. Closed the tab.
  7. Restarted Firefox and problem was solved.

Modified by gatesspam