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sir, please help me... My firefox browser can't open any website without "https" url... only websites with https protocol is opened by it, they are very few..

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sir, please help... :-( The problem is a ghost like to me. My browser can't open any site without https extension. like, it can open https://www.google.com but can't http://www.google.com please help.

sir, please help... :-( The problem is a ghost like to me. My browser can't open any site without https extension. like, it can open https://www.google.com but can't http://www.google.com please help.

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It is possible that your firewall or other security software blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.

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

See:

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If the above doesn't solve it, what specific error message do you get when trying to load HTTP addresses?