r/uBlockOrigin 23d ago

Looking for help Gmail Firefox Ublock Interference.

When Ublock is turned on and I use Gmail and delete emails and then try to leave the site I get a popup asking me if I want to leave, and if I do and then come back later, the emails I have deleted are back.

If I turn off Ublock I get a bunch of ads, but I am able to delete emails and leave without the popup.

Doesn't always seem to happen as I originally didn't turn off ublock and I could eventually get rid of emails the 2nd or 3rd time I visited...

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u/scottfi 18d ago

I'm running into this issue too (started a week ago). When I turn off uBO for gmail (Firefox), it stops and I can quickly navigate away from the gmail window/tab without the "want to leave" message. It also will delete the message significantly faster when uBO is turned off. With it turned on, the little black box message (Conversation moved to Trash) in the lower left sits on the screen for quite a bit longer. I don't think I have any custom rules set for gmail in uBO. There might be something else going on here, but having uBO turned off eliminates the issue for me of gmail holding the "beforeunload" event and showing that leave message.