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I’m getting a pop up that freezes my pc and a message that reads “Your computer has been blocked call xxx-xxx-xxx.” This happens with Firefox only. Help?

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I’m getting a pop up that freezes my pc and a message that reads “Your computer has been blocked call xxx-xxx-xxxx.” This happens with Firefox only. Help?

I’m getting a pop up that freezes my pc and a message that reads “Your computer has been blocked call xxx-xxx-xxxx.” This happens with Firefox only. Help?

Modified by James

All Replies (3)

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HI you have some malware please : Please use more than 1 scanner as each uses diff tech :

Save your Report and google each before deleting anything as do not want to delete something you need, If need help :

Post in only 1 forum, then wait.

Please let us know if this solved your issue or if need further assistance

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Do not call that number. This is a common scam.

Your computer may or may not be infected. Running a malwarebytes scan is the only way to tell.

You should install https://addons.mozilla.org/firefox/addon/ublock-origin/ to block ads online, which is often how these scams happen.

Please also make sure that you keep both Windows and Firefox up to date.

You should also disable Accessibility services if you don't use it, How do I disable Firefox Accessibility Service?

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If you see one again, there are a few common patterns to these annoying pages.

(1) Large alert dialog (lots of text)

If you cancel this dialog, it may reappear. After two or three appearances, Firefox should add a checkbox at the bottom of the dialog to stop the site from showing more alerts. Check that box and click OK to block further dialogs.

(2) Authentication dialog (asks for username and password)

If you cancel this dialog, the page may reload and immediately show it again. Pressing the Esc key numerous times in a row can cancel the reload as well as the dialog.

(3) Reacting to mouse movement

Some pages have a script that detects when you are moving the mouse pointer up toward the tab bar and takes action to show another dialog or switch the tab to full screen. On these pages, try using the keyboard shortcut Ctrl+w to close the tab instead of the mouse (on Mac, Command+w), or the Esc key to exit full screen.

Hopefully this will let you close problem pages without having to "kill" Firefox in the Windows Task Manager. (I don't recommend using that method because the tab will come back during automatic crash recovery anyway.)