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📣 Help shape Firefox by joining our Test Days event on July 21–Aug 1 to test the Firefox Semantic History Search in Firefox Beta 142

Performance and connectivity

Site breakages

Resolve problems when websites don’t load or function correctly.

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How to troubleshoot time related errors on secure websites

Website will not allow Firefox to display the page if another site has embedded it

How to troubleshoot security error codes on secure websites

Websites don't load - troubleshoot and fix error messages

Firefox can't load websites but other browsers can

Resist Fingerprinting

How do I report a broken site in Firefox desktop?

Websites look wrong or appear differently than they should

Fix login issues on websites that require a username and password

Fix problems with Facebook games, chat and more

Configure firewalls so that Firefox can access the Internet

Firefox and other browsers can't load websites

Websites show a spinning wheel and never finish loading

Fix problems connecting to websites after updating Firefox

Websites say that Firefox is outdated or incompatible even though it's the latest version

TLS Error Reports

Troubleshoot issues related to add-ons

Difficulties opening or using a website in Firefox 100

Problems with email and how to find help

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