Firefox slow and lagging

[lockon]

Within the last month or two Firefox has started lagging so badly that I've had to switch to Chrome. The issue is manifested as:

- delay in typed characters (like the old 300 baud days)
- delay in tabs coming up or being switched to.
- very slow scrolling and page fills
- freezing and hanging when scrolling long pages

To be sure that this is not my internet connection:

- this happens anywhere I'm connected and even using an ethernet connection
- the same pages in side-by-side tests load instantly in Chrome

I use the following add-ins: Xmarks, LastPass and ad-block plus... nothing else. Exactly the same plugins in Chrome cause no issues.

I've refreshed Firefox and still the same. I'm an IT guy and to the best of my experience the issue is internal to Firefox. I could try a clean removal and reinstall of Firefox but I thought I'd check here first.

I'd still like to go back to firefox because there are things about Chrome I don't like.

Thank you

[GHM113]

I use the following add-ins: Xmarks, LastPass and ad-block plus... nothing else. Exactly the same plugins in Chrome cause no issues

LastPass and AdBlock cause performance problems, try to disable them.

[Ortho_Fan]

I had the same experience, though I only had Adblock Plus installed, and not Lastpass. I spotted this on the ABP forum -- https://adblockplus.org/forum/viewtopic ... d082cc30de

When I disabled ABP, the lags disappeared, so I uninstalled it and installed Ublock Origin in its place. No more stalls, and all pages load much faster now.

OrthoFan

[dfoulkes]

I've refreshed Firefox and still the same. I'm an IT guy and to the best of my experience the issue is internal to Firefox. I could try a clean removal and reinstall of Firefox but I thought I'd check here first.

Thank you

When you 'refreshed' Firefox did you try it right after that refresh... or did you alter your profile first?

...and BTW... it's much easier to just create another profile 1st... try that new one out and then go from there...
Creating a new Firefox profile on Windows - MozillaZine Knowledge Base
And,.... DON'T TOUCH THAT "Choose Folder..." BUTTON! ... unless you fully know all about it.
Opening a new instance of your Mozilla application with another profile - MozillaZine Knowledge Base

...also, what AV software do you use?
...plus...
uBlock Origin :: Add-ons for Firefox

[Brummelchen]

lastpass has issues and abp even more: http://forums.mozillazine.org/viewtopic ... &t=3030838

[RobertJ]

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Brummelchen, thanks for the link.

.

[Brummelchen]

/me little stupid missed the answer from GHM113 :o

[Happy112]

To all :

As for AdBlock Plus 2.9 - please see this thread on Mozilla's contributor forum :

https://support.mozilla.org/en-US/forum ... last=71863

[Pring]

Before FF 54, all great... after FF54 slow as a dog... its not the addons that are the issue.

Also, I need to remove those damn light and dark themes. I hate mozilla getting fascist about that being mandatory.

As mentioned above, I'm going to have to switch to chrome.

[dfoulkes]

I'm using version 54 now with 30 extensions and on just a 6meg line... no issues... so, I suggest that you try that test profile and use it as-is to test.

[RobertJ]

As mentioned above, I'm going to have to switch to chrome.

No one here really cares.

We folks are not part of Mozilla.
Established in 1998, MozillaZine is an independent Mozilla news, community and support site.
MozillaZine is not run by the Mozilla Foundation and is not an official part of the Mozilla project.

.

[Happy112]

As mentioned above, I'm going to have to switch to chrome.

No one here really cares.

I do !!!
Firefox is the best browser there is, and I'd like to think that every user who comes to MozillaZine with a Firefox related problem, wants to see that problem SOLVED, rather than to start using another browser.

[RobertJ]

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Firefox is the best browser there is

That is a personal opinion.

As stated above with regard to switching to Chrome,

No one here really cares

.

[i_am_jim]

I'm having these same problems. They started about 5 days ago -- delays between characters when typing, delays responding to page downs, occasional freezing, pausing when highlighting, etc. I used Chrome long enough to know the problem is with Firefox. When I start FF in with addons disabled the problem seems to go away. I have no addons or plugins.

Any suggestions?

[Grumpus]

Before FF 54, all great... after FF54 slow as a dog... its not the addons that are the issue.
Also, I need to remove those damn light and dark themes. I hate Mozilla getting fascist about that being mandatory.
As mentioned above, I'm going to have to switch to chrome.

@Pring - We've already been through the removal of the two extra themes with you, they're embedded in the program code and are not separate modules and are not accessible at user level to be removed.
I believe someone gave you a code edit solution as well.