Fix mozilla firefox not responding

Some solutions to fix mozilla firefox not responding :

Force close restart and update

If you rarely experience instability, a temporary fix will be to force close Firefox and initiate a restart. If the error is caused by an internal bug or by a corrupted internal file forcing the client to update will resolve most of those errors. Once Mozilla Firefox becomes unresponsive, you won’t be able to close it the conventional way (via the close icon). However, you can easily close the program through Task Manager by pressing Ctrl + Shift + Esc. Then, go to the Processes tab, select Firefox and click the End task button.

Once you manage to close the unresponsive application, go ahead an restart your operating system. At the next startup, open Firefox again and click the Menu icon in the top-right corner. Then, go to Help and click on About Firefox. Wait until the system checks if you have the latest version. If a new version is available, click on Restart and update Firefox and wait for the process to complete.

Check for the required access rights

A common reason why the Firefox browser becomes unresponsive is when the profile folder doesn’t have write permissions. This is quite a common occurence if Firefox uses a profile from a file system that was previously mounted with read-only permissions.

Luckily, you can easily change the settings of the profile folder to configure the proper permissions. Here’s how you can do this:

1. Press Windows key + R to open up a Run box. Then, type “%APPDATA%\Mozilla\Firefox\Profiles\” and hit Enter to open the folder containing the profile folders of Firefox.

   2. Go up one folder to reach the Firefox folder, then right-click on the Profiles folder and                     choose Properties.

   3. In the Properties window of Profiles, go to the General tab and make sure that the Read-only box not checked and hit the Apply button.

  4. If you found that the Read-only attribute was checked and you modified it go ahead reboot your computer. At the next startup, start using Firefox again and monitor it for any signs of  unresponsiveness.

Clearing the Cache & Cookies

Another popular fix that has enabled a lot of users to get rid of unresponsive periods was clearing the cache. By eliminating cached web page versions and cookies, you successfully eliminate a lot of potential culprits that might be causing the problem.

Here’s a quick guide on how to resolve unresponsive periods in Firefox by clearing the cache and Cookies:

1. Open Firefox and go to menu icon (top-right corner), then click on Options.
2. Then, go to the Privacy & Security tab, scroll down to Cached Web Content and click on the Clear Now button.

    3. Close FireFox and restart your computer. At the next startup, open Firefox again and see whether the      unresponsive periods have been resolved.

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