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Firefox 73.0 Mac OS slow to load some web pages

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Since the 73.0 update Firefox 73 loads SOME web pages slowly. For example, got to tesla.com and click on model S. This page barely loads. It starts but the graphic seems very slow. I tried loading Firefox 73.0 in safe mode, same problem. Safari loads everything quickly so not my internet connection. Firefox 72 (72.0.2) worked perfectly

Running Mac OS Mojave on a 2013 Mac Pro.

Since the 73.0 update Firefox 73 loads SOME web pages slowly. For example, got to tesla.com and click on model S. This page barely loads. It starts but the graphic seems very slow. I tried loading Firefox 73.0 in safe mode, same problem. Safari loads everything quickly so not my internet connection. Firefox 72 (72.0.2) worked perfectly Running Mac OS Mojave on a 2013 Mac Pro.
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Additional System Details

Installed Plug-ins

uBlock Origin, Privacy Badger. Starting in Firefox safe mode has same behavior

Application

  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:73.0) Gecko/20100101 Firefox/73.0

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FredMcD
  • Top 10 Contributor
4399 solutions 61752 answers

Nice cars.

Many site issues can be caused by corrupt cookies or cache.

Warning ! ! This will log you out of sites you're logged in to. You may also lose any settings for that website.

If there is still a problem, Start Firefox in Safe Mode {web link} by holding down the <Shift> (Mac=Options) key, and then starting Firefox.

A small dialog should appear. Click Start In Safe Mode (not Refresh). Did this help?

While you are in safe mode;

Try disabling graphics hardware acceleration in Firefox. Since this feature was added to Firefox it has gradually improved but there are still a few glitches.

How to disable Hardware Acceleration {web link}

Nice cars. Many site issues can be caused by corrupt cookies or cache. '''Warning ! ! ''' This will log you out of sites you're logged in to. You may also lose any settings for that website. * [https://support.mozilla.org/en-US/kb/delete-cookies-remove-info-websites-stored Delete cookies to remove the information websites have stored on your computer] {web link} * [https://support.mozilla.org/en-US/kb/how-clear-firefox-cache How to clear the Firefox cache] {web link} If there is still a problem, '''[https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Start Firefox in Safe Mode]''' {web link} by holding down the '''<Shift> ''(Mac=Options)''''' key, and then starting Firefox. A small dialog should appear. Click '''Start In Safe Mode''' (not Refresh). Did this help? While you are in safe mode; Try disabling graphics hardware acceleration in Firefox. Since this feature was added to Firefox it has gradually improved but there are still a few glitches. ''[https://support.mozilla.org/en-US/kb/forum-response-disable-hardware-acceleration How to disable Hardware Acceleration]'' {web link}
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Question owner

Already tried deleting all cookies on this site, cleared the cache as well. Same issue. Started with 73.0. Multiple sites do this. Again, Safari loads them fine

Already tried deleting all cookies on this site, cleared the cache as well. Same issue. Started with 73.0. Multiple sites do this. Again, Safari loads them fine
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FredMcD
  • Top 10 Contributor
4399 solutions 61752 answers

jschneid002 said

Multiple sites do this

Are you using 0patch-Agent ? See https://support.mozilla.org/en-US/forums/support-forum-contributors/713924?last=77606


Start your Computer in safe mode with network support. Then start Firefox. Try Secure websites. Is the problem still there?

http://encyclopedia2.thefreedictionary.com/Linux+Safe+Mode Starting Any Computer In Safe Mode; Free Online Encyclopedia

''jschneid002 [[#answer-1289659|said]]'' <blockquote> Multiple sites do this </blockquote> Are you using 0patch-Agent ? See https://support.mozilla.org/en-US/forums/support-forum-contributors/713924?last=77606 Start your '''Computer''' in safe mode with network support. Then start Firefox. Try '''Secure''' websites. Is the problem still there? http://encyclopedia2.thefreedictionary.com/Linux+Safe+Mode Starting Any Computer In Safe Mode; Free Online Encyclopedia
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