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I have accidentally blocked Firefox's access to the internet, how do I unblock it?

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Earlier I saw a popup while I was browsing that said that Firefox was trying to access my internet, and at the time this seemed suspicious. I don't know why, but I pressed "block" which, in return, blocked my entire access of the internet through Firefox. I tried reinstalling Firefox, and I also tried to do stuff with the firewall but I didn't understand what to do. How could I allow Firefox to access the internet again?

Earlier I saw a popup while I was browsing that said that Firefox was trying to access my internet, and at the time this seemed suspicious. I don't know why, but I pressed "block" which, in return, blocked my entire access of the internet through Firefox. I tried reinstalling Firefox, and I also tried to do stuff with the firewall but I didn't understand what to do. How could I allow Firefox to access the internet again?

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Remove all rules for Firefox from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process and the updater process.

See: