Firefox is slow after updating to Firefox 38
This article is no longer maintained, so its content might be out of date.
After the recent update to Firefox 38, some Windows users may notice that Firefox responds more slowly while you type in a search, enter a web address, or navigate its controls, than its prior versions.
Mozilla is currently working on a long-term fix, but if you are affected, you can take these steps to fix the issue yourself:
Turn off hardware acceleration
- Click the menu button and choose . .
- Select the panel and the tab.
- Uncheck Use hardware acceleration when available.
Click the menu button and then click ExitQuit .
Click the Firefox menu , then click .Click the Firefox menu at the top of the screen, then click .Click the Firefox menu , then click .
- Start Firefox the way you normally do.
Install a current graphic driver
Since the problem mainly occurs when using the Standard VGA Graphics Adapter driver included with Windows, installing a dedicated graphics driver for your hardware will help.
In order to update your graphics driver, see Search for and install new graphics drivers.