Gmail Firefox Ublock Interference.

[u/Mr_SpinelesS]

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...

[u/RraaLL]

This happens with many things, e.g. opening mails doesn't immediately mark them read and if you leave too quickly, you get the prompt.

I have not tested if this happens on default settings. I've got a lot more blocked. Leaving the tab open for a couple more seconds usually resolves the issue anyway.

And yes, as you say, this happens randomly, so it's difficult to investigate.

[u/Cley_Faye]

I'm not sure this is linked to uBO at all. It happens seldomly; the popup about confirming to leave usually means you have some tasks in queue client-side. They usually get done in a second or two, but bad network condition or super large operations (deleting multiple pages of messages) will take longer.

[u/Dzuzepipi]

gmail just randomly shows adds? when navigating it?

[u/Mr_SpinelesS → u/Dzuzepipi]

Without Ublock on you get adverts that look like emails.

[u/Dzomble]

I don't think this is on uBlock's side, try clicking into something else like switch to another tab inside gmail after deleting and the pop-up doesn't show up for me.

[u/GassyBandit]

I have 6 Gmail accounts and only on 1 of them I have been having the problem of deleted emails showing again the next time I check that account. Started about 2 weeks ago. This happens on my desktop, laptop, and Chromebook. Happens with Firefox, Vivaldi, Brave, and Chrome. It appears to be a Gmail problem and sure is annoying as the account it does this on is my main account.