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Pop-up blocker settings, exceptions and troubleshooting
Learn what pop-up windows are and what settings Firefox has for blocking or allowing them.
Captive portal detection
Description of how Firefox detects captive portal networks.
Websites don't load - troubleshoot and fix error messages
Are you having trouble getting a website to load? This article will show you how to fix the problem so you can get back to surfing the web.
How do I set up Sync on my computer?
Use a Mozilla account to sync your bookmarks, history, passwords, add-ons and open tabs with another device, profile or version of Firefox.
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