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

Since I have updated to 52 ESR firefox functions less.

more options

I am a private user with one single computer but I have been urged constantly to update to, first 52 1.0 ESR and later 52 1.2 ESR. Firefox since then crashes frequently, orten starts slowly and on Gameknot Adblock plus for Firefox causes problems, terrible slow loading of pages, ALTHOUGH IT IS OFF on that site. Starting and working on that site in Safe Mode solves the problem. And it is not hardware acceleration that causes the problems. So I think it must be Adblock.

I have two questions. Do I need these ESR updates? And how can there be a difference between Safe Mode and Adblock being switched off in normal mode?

I am a private user with one single computer but I have been urged constantly to update to, first 52 1.0 ESR and later 52 1.2 ESR. Firefox since then crashes frequently, orten starts slowly and on Gameknot Adblock plus for Firefox causes problems, terrible slow loading of pages, ALTHOUGH IT IS OFF on that site. Starting and working on that site in Safe Mode solves the problem. And it is not hardware acceleration that causes the problems. So I think it must be Adblock. I have two questions. Do I need these ESR updates? And how can there be a difference between Safe Mode and Adblock being switched off in normal mode?

Chosen solution

hi, in case you have adblock plus version 2.9, there are currently a number of reports that this recent update causes poor performance, please try to replace it with https://addons.mozilla.org/firefox/addon/ublock-origin/ and see if the issue is still there. and yes, you should always keep updated to the latest firefox version for maximum security.

Read this answer in context 👍 1

All Replies (2)

more options

Chosen Solution

hi, in case you have adblock plus version 2.9, there are currently a number of reports that this recent update causes poor performance, please try to replace it with https://addons.mozilla.org/firefox/addon/ublock-origin/ and see if the issue is still there. and yes, you should always keep updated to the latest firefox version for maximum security.

more options

Thank you, I did as you suggested, and the issue has gone, I hope for good.