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Random website popping up while using Firefox.

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When browsing in some websites such as "facebook.com", "mozilla.org", "lenovo.com", I sometimes get a popup to this link, but I don't have any kind of extension that could be causing that I think. What would be a way to troubleshoot this so that I can prevent that from happening? It's really annoying and the site also seems really sketchy.

When browsing in some websites such as "facebook.com", "mozilla.org", "lenovo.com", I sometimes get a popup to this [https://www.coupontodeal.com/coupons/mozilla.org link], but I don't have any kind of extension that could be causing that I think. What would be a way to troubleshoot this so that I can prevent that from happening? It's really annoying and the site also seems really sketchy.
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Chosen solution

Sounds like an add-on issue. You should manually disable all of them and then bring them back one by one. Enable one and restart Firefox, enable one and restart Firefox, until you see the issue.

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All Replies (4)

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jonzn4SUSE said

Did you try with Firefox in Safe Mode? https://support.mozilla.org/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode#w_how-to-start-firefox-in-4troubleshoot-modesf5safe-modesf

I just tried Safe Mode. The issue doesn't seem to come up

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Chosen Solution

Sounds like an add-on issue. You should manually disable all of them and then bring them back one by one. Enable one and restart Firefox, enable one and restart Firefox, until you see the issue.

Modified by jonzn4SUSE

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I think I've found the add-on that was giving issues. I'll see if the issue will go away forever as it was something that used to be pretty random.

Thanks for the help!