Then, find the Parent.Lock file by typing it in the Search Profiles field as shown.ģ. C:\Users\USERNAME\AppData\Roaming\Mozilla\Firefox\Profiles.Ģ. As discussed in the above method, open the File Explorer and navigate to the following path.
#Mozilla firefox not responding bug windows#
Note: Close all the Firefox windows before following the below steps.ġ. To resolve the problem, delete the Parent.Lock file in the Firefox Profile folder as instructed below. This file will not let you properly operate the Firefox browser, leading to Firefox not responding on startup issues. When your Firefox browser is crashed or closed, the Firefox lock file is automatically created in the Profile folder. Finally, click on Apply > OK to save the changes and restart your PC.Īlso Read: Fix Server Not Found Error in Firefox Method 3: Delete Parent.Lock File in Profile Folder In the Profiles Properties window, uncheck the Read-only (Only applies to files in folder) box in the General tab, as highlighted below.ĥ.
Now, right-click on the Profiles folder and select the Properties option as shown.Ĥ. C:\Users\USERNAME\AppData\Roaming\Mozilla\Firefox.ģ. Now, paste the following path in the address bar. Press and hold Windows + E keys together to open the File Explorer.Ģ. If not, rectify the same by following the below-mentioned instructions.ġ. First, check if the files and folders of the Firefox profile have proper access rights. If the Firefox profile folder in your computer has not given proper rights to access, write, copy or transfer files, you will face Firefox is not responding issue. Restart Firefox and check if Firefox not responding on startup problem is solved. Then, select the Themes option in the left pane, and click on the Enable button next to System theme – auto theme as shown.ĥ. Note: You can also press Ctrl +Shift + A keys together to open the Add-ons and themes page.Ĥ. Then, select the Add-ons and themes option as shown. If you have any other browser themes rather than the default system theme, follow the below-mentioned steps to switch to the Default theme as instructed below to fix Firefox is not responding issue.ġ. But they may cause instability of the browser leading to this issue. There are so many custom themes in Firefox like Dark theme, Firefox Alpenglow, Light, Rawrrr!, That’s So Fire, and a lot more. Method 1: Switch to Default Theme (If applicable) To do so, press and hold the Shift key while starting the browser.
Basic Troubleshooting Tipsīefore trying any advanced troubleshooting methods, try these basic troubleshooting methods. Follow them in the same order, and since they are arranged from basic troubleshooting methods to advanced, you may attain perfect results even within the first two to three methods themselves. In this section, you will get through several effective troubleshooting methods that will help you fix the discussed problem. Firefox interferes with other browser settings.Īnyways, you can easily resolve this issue by following the below-discussed methods.Misconfigured database files in Firefox.If too many freeware converters (like word to PDF, JPEG to PNG, etc.) are running in the background at the same time.The Firefox profile folder is locked in your computer.
#Mozilla firefox not responding bug windows 10#
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