Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

FIrefox 57 stinks. It is 3 times as slow a 56. Had to go back even after trying support help suggestions. Please fix so I can upgrade in the future.

  • 1 reply
  • 1 has this problem
  • 5 views
  • Last reply by dario.be

more options

Upgraded to Firefox 57. It runs 3 times or more as slow as 56. Tried the supports fixes. Barely helped at all. Had to go back to 56. Luckily that was easy and no problems. When will a new version of Firefox REALLY be faster?

Upgraded to Firefox 57. It runs 3 times or more as slow as 56. Tried the supports fixes. Barely helped at all. Had to go back to 56. Luckily that was easy and no problems. When will a new version of Firefox REALLY be faster?

All Replies (1)

more options

Hello dcarroll2046.

I am sorry to hear that you have problems with Firefox Quantum. Knowing that this might be of very little help let me suggest this: Have you checked out similar questions on this forum? One solution could be to try and start Firefox in Safe Mode to see if any add-ons cause the problems.

Now there has been another release of Firefox by now. Firefox 58 has introduced another performance boost for most people. Maybe you can try to install this version of Firefox? Be aware that you can not downgrade from any versions 58 or higher. You will need to backup of your Firefox profile before you update to Firefox 58 if you want to be able to go back!

By the way, if you want to file a bug report do so at bugzilla.mozilla.org. There any specific bugs and performance issues can be adressed by the right people.

Let us know if anything of this helps or if not you might want to tell a little bit more about your PC, the number of add-ons and so on.

Have a nice day and good luck.