Few users report Firefox is terribly slow after the latest update, fails to load pages.

It could be buggy update, problem with extensions, web app cache or cookies slow down Firefox performance.

Contents

Why Firefox Running Slow?

How to speed up Firefox?

Update Firefox

Developers regularly update the net internet ride with the latest bug fixes and security enhancements.

This may help you in making the web client faster.

Open Firefox, typeabout:configin the URL bar and press Enter key.

Try these 8 solutions 2025

Windows 11 is very Slow after KB5055523 update?

Lets Optimize it

Windows 11 KB5055523 Failed to install or stuck?

6 ways to fix it