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Firefox print hacked

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Firefox print hacked :

Firefox print hacked :

Hello

I got that already 2-3 times while trying to download some stuff. It's impossible to close the Firefox window! See images - https://i.postimg.cc/Qt8BHdH7/problem-firefox-1.jpg - https://i.postimg.cc/XJsrF6Cz/problem-firefox-2.jpg

When you retsart the PC, it's gone most of the time; sometimes you have to restart twice. Antivirus does not find anything afterwards.

Question : How to stop the Firefox print session (I did not find anything online!)

Thanks in advance

Firefox print hacked : Firefox print hacked : Hello I got that already 2-3 times while trying to download some stuff. It's impossible to close the Firefox window! See images - https://i.postimg.cc/Qt8BHdH7/problem-firefox-1.jpg - https://i.postimg.cc/XJsrF6Cz/problem-firefox-2.jpg When you retsart the PC, it's gone most of the time; sometimes you have to restart twice. Antivirus does not find anything afterwards. Question : How to stop the Firefox print session (I did not find anything online!) Thanks in advance

All Replies (3)

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This looks like the scam reported here: https://bugzilla.mozilla.org/show_bug.cgi?id=1668322

Either that website is malicious, or it is the website that's been hacked.

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Sites trigger printing by calling a script function called

window.print()

To prevent all sites from using that function:

(1) In a new tab, type or paste about:config in the address bar and press Enter/Return. Click the button accepting the risk.

(2) In the search box in the page, type or paste print and pause while the list is filtered

(3) Double-click the dom.enable_window_print preference to switch the value from true to false

If you are in a window where you can't easily access the menu, you can call up the print dialog using Ctrl+P.

There may be some sites where you cannot print as intended without letting them use window.print() so this change may cause problems on those sites.

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Our telemetry shows that around 85% of prints are initiated by window.print() (presumably mainly via "Print" buttons on webpages). So setting dom.enable_window_print to false probably isn't a good idea for most people.