Hey there. If you wanna block pop-ups, go to about:preferences#privacy and Make sure the Block pop-up windows checkbox is checked. I'm not sure If Firefox will block its own pop-ups but you can give it a try.

Personally, I recommend installling the newer version as the older one is more vulnerable and the newer one provides Enhanced Security.

Whenever you get a message / popup that software / files need to be updated;

DO NOT USE ANY OF PROVIDED LINKS

While this may be a legitimate message, it could also be Malware or a Virus. Anytime you want or need to check for upgrades, go to the website of the True Owner of the program in question. For example, to check out Firefox, go to https://www.mozilla.org

You can report such a site at; http://www.google.com/safebrowsing/report_phish/ Google Report Phishing Page which is the same when done while on site by going to Help > Report Web Forgery

http://www.mozilla.org/en-US/legal/fraud-report/ Help us safeguard Mozilla’s trademarks by reporting misuse

https://support.mozilla.org/en-US/kb/avoid-and-report-mozilla-tech-support-scams

https://support.mozilla.org/en-US/kb/update-firefox-latest-version?cache=no Did you update Firefox to the latest version?

Version 92.0.1, first offered to Release channel users on September 23, 2021 Version 93.0, first offered to Release channel users on October 5, 2021

You can check that those pages aren't set as multiple homepages.

You can check the homepage setting.

• Settings -> Home
• https://support.mozilla.org/en-US/kb/how-to-set-the-home-page

Firefox supports multiple homepages separated by '|' (pipe) symbols.