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Firefox delays loading of websites even after major reset

Posted

Hi, I'm having a problem with my Firefox loading major websites like Gmail, Facebook etc.. The loading time of these just went terribly slow... And when a webpage like these is finally displayed, it still keeps loading for a very long time, and navigation the page itself is very laggy. For example, if I type in a simple search query for a Google-search in my URL-Bar, when I hit Enter it takes more than 7 seconds until the results are displayed..! And even after that, the page is still loading for a few seconds. Strangely it works fine in other browsers.

I already tried the following approaches: - Reinstalling Firefox and deleting all Mozilla-related content in AppData - Using Firefox in Safe Mode with diabled add-ons - Disabling and Enabling the hardware acceleration - Disabling and Enabling access for accessiblilty services

After reinstalling and restoring my basic browsing data through Sync it works fine, until I start Firefox for the second time. It's the first time I encounter a problem like this. Any ideas?

Hi, I'm having a problem with my Firefox loading major websites like Gmail, Facebook etc.. The loading time of these just went terribly slow... And when a webpage like these is finally displayed, it still keeps loading for a very long time, and navigation the page itself is very laggy. For example, if I type in a simple search query for a Google-search in my URL-Bar, when I hit Enter it takes more than 7 seconds until the results are displayed..! And even after that, the page is still loading for a few seconds. Strangely it works fine in other browsers. I already tried the following approaches: - Reinstalling Firefox and deleting all Mozilla-related content in AppData - Using Firefox in Safe Mode with diabled add-ons - Disabling and Enabling the hardware acceleration - Disabling and Enabling access for accessiblilty services After reinstalling and restoring my basic browsing data through Sync it works fine, until I start Firefox for the second time. It's the first time I encounter a problem like this. Any ideas?

Chosen solution

thanks, it appears that avast is involved in this slow-down unfortunately. can you try to remove it for testing purposes once?

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Additional System Details

Installed Plug-ins

  • Shockwave Flash 21.0 r0

Application

  • Firefox 58.0.2
  • User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:58.0) Gecko/20100101 Firefox/58.0
  • Support URL: https://support.mozilla.org/1/firefox/58.0.2/WINNT/en-US/

Extensions

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Javascript

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Modified Preferences

Misc

  • User JS: No
  • Accessibility: No
philipp
  • Top 25 Contributor
  • Moderator
5342 solutions 23598 answers

hi, could you capture and share a performance profile while this is happening once? https://developer.mozilla.org/en-US/docs/Mozilla/Performance/Reporting_a_Performance_Problem

hi, could you capture and share a performance profile while this is happening once? https://developer.mozilla.org/en-US/docs/Mozilla/Performance/Reporting_a_Performance_Problem

Question owner

Hope I did it right, but have a look here:

https://perfht.ml/2EtTcUk

Hope I did it right, but have a look here: https://perfht.ml/2EtTcUk
philipp
  • Top 25 Contributor
  • Moderator
5342 solutions 23598 answers

yep thanks, what happened during that profile - did you just try to load a particular website or did you observe the slowness while entering search terms?

yep thanks, what happened during that profile - did you just try to load a particular website or did you observe the slowness while entering search terms?

Question owner

I started capturing, quickly entered a short search term into the URL bar, and stopped as soon as the Google result page was loaded...

I started capturing, quickly entered a short search term into the URL bar, and stopped as soon as the Google result page was loaded...
philipp
  • Top 25 Contributor
  • Moderator
5342 solutions 23598 answers

Chosen Solution

thanks, it appears that avast is involved in this slow-down unfortunately. can you try to remove it for testing purposes once?

thanks, it appears that avast is involved in this slow-down unfortunately. can you try to remove it for testing purposes once?

Question owner

Hey, I just wanted to deactivate Avast when I saw that there was an update pending for Avast, so I decided to do that first. Installed, rebooted.... Now my Firefox works fine again! :-) So it seems there was something wrong with that previous Avast version that had an impact on Firefox.

Thank you so much, I'll remember to check my anti-virus first next time

Hey, I just wanted to deactivate Avast when I saw that there was an update pending for Avast, so I decided to do that first. Installed, rebooted.... Now my Firefox works fine again! :-) So it seems there was something wrong with that previous Avast version that had an impact on Firefox. Thank you so much, I'll remember to check my anti-virus first next time