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Everytime I click on a link and a new tab/window opens to open the link - i get an alert that says URL is not valid and cnnot be loaded. I click ok and the page loads fine. How do I get rid of this alert?

  • 3 replies
  • 26 have this problem
  • 120 views
  • Last reply by cor-el

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See above

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Although possibly not related to your problem, I have to remind you that the version of Firefox you are using at the moment has been discontinued and is no longer supported. On top of this, it has known unpatched bugs and security problems. I urge you to update to the latest version of Firefox, for maximum security, stability, performance and usability. You can get it for free, as always, at getfirefox.com.

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Actually the OP is running Firefox 3.6.8, but has a user agent that is corrupted by an extension (NET_mmhpset)

You can check the general.useragent prefs on the about:config page.
You can open the about:config page via the location bar, just like you open a website.
Filter: general.useragent
If general.useragent prefs are bold (user set) then you can right-click that pref and choose Reset.

See Web sites or add-ons incorrectly report incompatible browser and Find what version of Firefox you are using

See also http://kb.mozillazine.org/Resetting_your_useragent_string_to_its_compiled-in_default