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SInce last upgrade Mozilla Firefox runs very slow, so much so that I have to use MS EDGE so open some sites

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murraymcwhirter
murraymcwhirter

Since the last upgrade Firefox is running very slowly. Many sites that I use daily either take so long to open or don't open at all. I have to open MS EDGE which opens up these sites within microseconds.

I prefer using Mozilla, but unfortunately looks like I may have to move as Firefox is now almost useless for me.

Can anyone suggest anything I could try.

thanks

Muz

Since the last upgrade Firefox is running very slowly. Many sites that I use daily either take so long to open or don't open at all. I have to open MS EDGE which opens up these sites within microseconds. I prefer using Mozilla, but unfortunately looks like I may have to move as Firefox is now almost useless for me. Can anyone suggest anything I could try. thanks Muz

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jbr
jbr
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Hi Muz, there's no troubleshooter data attached to this post, so the first factor to verify on Windows secured connection issues is: What is your antivirus/phishing/malware software or security solution provider, and what happens if you disable it (or its web/HTTPS features)?

Other than that, the best thing to do is to compare in Private Window, Troubleshooter Mode or creating a separate testing Profile to see how existing site data impact that.

The steps to go through are from the easier to the complex ones:

  1. Please check if you have Enhanced Tracking Protection (ETP) enabled. You can do that by clicking the shield Fx89ShieldIcon icon in the left part of the address bar.
    • If ETP is enabled, try disabling it.
  2. If the problem is not fixed, try clearing Firefox cache.
  3. If it does not help, try clearing cookies and data for the website you experience troubles with (warning: you will be logged out on this website).
  4. If it also does not help, try running Firefox in Troubleshoot Mode. If the problem doesn't persist, please follow the steps from this article to troubleshoot further.
  5. If nothing from the above helps, try creating a new Firefox profile and check if the issue persists there. If it doesn't, you can start copying files from your old profile to the new one to identify which one causes the issue. See this article on what files to copy.

But hopefully none of the more complex steps will be necessary, this looks either like a VPN / antivirus incompatibility, or something similar stuck in the networking itself.

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