If your computer is slow, try this
How to Reduce Firefox's Memory Usage (How to Prevent Firefox from Using Too Much Memory)
There are many Windows and Mac users who spend most of their time staring at open tabs in their web browser. It is the center of activity, allowing you to answer emails, play games, check social media, watch videos, and more. The possibilities are endless, but unfortunately, your system resources are not.
Browsers like Mozilla Firefox can and will use up available system memory the more you use them. This can cause your computer to slow down and become unresponsive, especially if you can’t figure out the cause. If Firefox is using too much memory during general use, try these solutions to see if they fix the problem.
All web browsers suffer from memory leak issues, including Firefox and Chrome. Memory leaks are usually caused when a browser is left running with multiple active tabs for a long period of time. After a while, the open tabs start to eat up and claim most of the available system resources, making your PC struggle to respond.
