Firefox hangs at random times or the web app is completely unresponsive and then crashes on your gear?

And the internet tool regularly gets updated to patch security holes and fix different problems.

There are multiple reasons behind this strange behaviour of Firefox not responding or the web app crashing.

You might be using an outdated version of the Firefox internet tool on your machine.

One more thing you should probably check you are connected to a stable internet connection.

Because sometimes slow internet stuck the surfing app performance.

And now look to see if the web client opens and works normally.

To find the one responsible, try disabling all.

Lets Disable Hardware Acceleration and test whether this helps fix the issue.

To block the hardware acceleration on Mozilla Firefox.

Note this option removes web client extensions and customizations but keeps your bookmarks and passwords.

Thats all this will reset the Firefox online window its default setup and make it fresh new for you.

Launch Mozilla after the reset process is over, and find out if its working as expected.

Create a Fresh Places database

Note your web browsing history and your bookmarks will be deleted.

Start Firefox and see if the problem has been solved.

Try these 8 solutions 2025

Download KB5055523 for Windows 11 (24H2) April 2025 Security Update