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Add-on Badges
You’ll know if an extension is being regularly reviewed if it has one of the badges listed in this article.
Captive portal detection
Page that describes how Firefox detects captive portal networks.
How to troubleshoot time related errors on secure websites
Learn why you might see time-related errors on HTTPS websites and how you can troubleshoot these errors by correcting your system clock.
Secure connection failed and Firefox did not connect
If a website requires a secure connection that cannot be established, Firefox will not connect and will show you an error page. Learn more.
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