![]() ![]() Now restart Firefox to see if is working fine now. Step 3: In the Clear Data panel, mark the boxes that read ‘Cookies and Site Data’ and ‘Cached Web Content’. Step 2: Now switch to the Privacy & Security tab on your left and scroll down to Cookies and Site Data. Thus, you can try clearing out cache and cookies from Firefox to see if it helps. Sometimes, this old browsing data can overburden Firefox and create conflicts, ultimately causing Firefox to freeze or crash. Clear Cache and Cookiesīrowsers like Firefox rely on cache and cookies to improve your browsing experience. Now restart Firefox to see if it works fine now. Step 3: Next, uncheck ‘Use hardware acceleration when available’. Now uncheck the box that reads ‘Use recommended performance settings’. Step 2: Scroll down to go to the Performance section. Step 1: Launch Firefox on your PC and click on the menu icon in the upper right to open Settings. Thus, you can try disabling hardware acceleration in Firefox to see if that helps. But sometimes, depending on the graphics card on your PC, it can also cause Firefox to freeze. The feature essentially takes advantage of your PC’s GPU instead of CPU to speed up processes. Disable Hardware Accelerationīy default, Firefox comes with Hardware Acceleration enabled. Step 2: Now use the switches to toggle off extensions from here. Step 1: Open Firefox and click on the menu icon and select Add-ons and themes from the list. ![]() To find the one responsible, try disabling all. If it is working fine, the Firefox not responding issue is due to one of the Add-ons. Step 2: When prompted, click on Restart to launch Firefox in Troubleshoot Mode. Now click on the menu icon in the top right corner, go to Help, and select Troubleshoot mode from the sub-menu. To verify if that’s the case, launch Firefox in the Troubleshooting Mode which disables all Add-ons, themes, or any of your custom settings. If you rely on Add-ons on Firefox to improve your productivity, then those Add-ons could come in the way. Relaunch Firefox to see if it works fine now. Step 2: Under Processes, select Firefox and click on the End task button at the bottom. Step 1: Press Ctrl + Shift + Esc to launch the Task Manager. However, restarting Firefox browser can get rid of that niggle. ![]() Restart Firefoxįirefox might fail to start correctly if you’ve closed it abruptly the last time you use it. If the internet is working, you can continue with this troubleshooting guide. To further verify your internet connection, you can try opening another web browser such as Microsoft Edge or Google Chrome and load a few pages there. You’ll see the connection status at the top. ![]() To do that, press Windows key + I to open Settings on Windows and go to the Network & Internet tab. So the first thing you’ll need to do is check the Internet Connection on your computer. I never restore previous sessions, so this is not an issue for me.Patchy or intermitting internet connectivity at your home or office could cause Firefox to freeze or not respond at times. The downside to setting the to 20 minutes is that your browser session is saved only once every 20 minutes rather than once every 15 seconds. Setting the sessionstore interval to 1200000 milliseconds (20 minutes) resolved the memory consumption issue. I recall that Firefox started to become less responsive when any of its processes had consumed more than a gigabyte of RAM, and became very unresponsive after around two gigabytes of RAM was consumed by a Firefox process. Firefox will become less responsive as more memory is consumed. With the default value and while on some sites such as YouTube, the working set memory consumed by some of the running Firefox processes will slowly and steadily grow even if you pause the video you were watching. I recall that the default value is 15000 or 15 seconds. I resolved this by setting to 1200000 which is equivalent to 20 minutes. Firefox used to perform sluggishly for me after watching YouTube videos for a while. ![]()
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