Why is my Firefox browser slow all of a sudden?
All of a sudden, my Firefox browser is extremely slow. I did not change anything nor did I download any software.
It takes me some time to go to web pages and such. What can i do?
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What is your Internet Connection Speed? What do you use Firefox browser on whether its a desktop,tablet or mobile? Try uninstalling firefox and then download the latest firefox and install it
Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).
- Do NOT click the Reset button on the Safe Mode start window.
- https://support.mozilla.org/kb/Safe+Mode
- https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
It is possible that your security software (firewall, anti-virus) 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 internet for Firefox and the plugin-container process and the updater process.
See: