Firefox 4 is the newest version of web browser from Mozilla Firefox open source browser series, which features support for GPU hardware acceleration and various enhancements. As Firefox 4 is a major version upgrade, add-ons, plug-ins or extensions that have not been updated to support Firefox 4 will not be compatible with Firefox 4. Firefox 4 has built-in plugins and add-ons compatibility check which automatically … Continue reading Disable Add-Ons (Plugin and Extension) Compatibility Check in Firefox 4