Firemin will eliminate all memory leaks in Firefox by tweaking the Rizonesoft Memory Booster core a little and applying it to Firefox, including extensions. A portable version is also available.

One of the most significant “improvements” that Mozilla claims is Firefox memory usage, particularly the vanquishing of memory leaks.

If you thought it was too good to be true, you were right. Firefox still uses a lot of memory – way too much memory for a web browser.

We like keeping our apps running for a few days (that’s just the way we roll), and because of this, Firefox was using over ~800 MB of memory after about three days. It’s quite normal for Firefox to be sucking up ~100 MB of memory right off the bat.

In a memory leak, you’ll see the memory usage keep increasing the more prolonged the browser is open/in-use, and this is what happens with Firefox.

Similar:

How to Make Google Chrome and Mozilla Firefox Run Like New Again

How to Remove or Edit Saved Credit Card Information in Chrome, Firefox, IE, and Edge

How to Reset or Repair Google Chrome, Mozilla Firefox or Microsoft Edge

How-to Mute Tabs in Google Chrome, Mozilla Firefox, and Microsoft Edge