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Firefox 33.1 was installed today. Since then, keeps freezing up.

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Firefox was running fine until todays auto update. I'm running windows 8.1, with webroot for antivirus. Since the update, most of the time firefox is frozen. I can load a webpage, but I can't do anything. Scrolling is frozen. Choosing an item is frozen. I have had to resort to IE to file this question. Many thanks.

Firefox was running fine until todays auto update. I'm running windows 8.1, with webroot for antivirus. Since the update, most of the time firefox is frozen. I can load a webpage, but I can't do anything. Scrolling is frozen. Choosing an item is frozen. I have had to resort to IE to file this question. Many thanks.

Chosen solution

The above suggestions did not solve the problem. However, I have an extension, Webroot filtering. When I disabled this extension, the problem went away. When I re-enabled the extension, the problem came back. So, I uninstalled Webroot (the entire package, not just the Firefox extension) and then re-installed. I enabled the Webroot filtering extension. Following the re-install, the problem is fully resolved. Thanks to those who replied.

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Have you tried to Reset Firefox? Refresh Firefox - reset add-ons and settings

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I have tried the reset. However, the reset button will not respond. I also uninstalled, downloaded and reinstalled 33.1. Same problem. Thank you!

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You can try to disable hardware acceleration in Firefox.

  • Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"

You need to close and restart Firefox after toggling this setting.

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Chosen Solution

The above suggestions did not solve the problem. However, I have an extension, Webroot filtering. When I disabled this extension, the problem went away. When I re-enabled the extension, the problem came back. So, I uninstalled Webroot (the entire package, not just the Firefox extension) and then re-installed. I enabled the Webroot filtering extension. Following the re-install, the problem is fully resolved. Thanks to those who replied.