Recent answers to Oops... the system encountered an error (#001) in Gmail: My gmail stopped working via firefox, HELP!https://support.mozilla.org/ar/questions/13761042022-06-28T23:20:50-07:00Hi! I've the same issue. I have the same version of Firefox in two laptops, the first one in use Win2022-06-28T23:20:50-07:00elrengohttps://support.mozilla.org/ar/questions/1376104#answer-1515521<p>Hi! I've the same issue. I have the same version of Firefox in two laptops, the first one in use Windows 10 and last one Windows 11. In the same network. On Windows 10, I use Google Chrome for Work Account and Firefox for personal Account. I prefer Firefox by my employer is Google Fan and G-Suite works better in Chrome.
</p><p>In Chrome I have no issue like my personal laptop with Windows 11 and Firefox.
</p><p>In Firefox with Windows 11 sill lost connection at every 15 minutes. The only solution will be close Firefox and re-open if I no close Firefox the connection never be restore.
</p><p>I delete and create a new profile, delete cookies and Web Cache. Disable the Enhanced Tracking Protection for Gmail. Go to History Manager and forget about gmail site. No solution for the issue.
</p><p>Anyone can know what happen with GMAIL?
Thanks
</p>This could be a problem with Zero Round Trip Time Resumption.
You can try to set security.tls.enable2022-05-05T01:10:30-07:00cor-elhttps://support.mozilla.org/ar/questions/1376104#answer-1502634<p>This could be a problem with Zero Round Trip Time Resumption.
You can try to set <b>security.tls.enable_0rtt_data = false</b> on the <b>about:config</b> page to disable this feature until this is fixed by Google or Mozilla.
</p><p>You can open the <b>about:config</b> page via the location/address bar.
If you get the warning page, you can click the "Accept the Risk and Continue" button.
</p>
<ul><li><a href="https://support.mozilla.org/en-US/kb/about-config-editor-firefox" rel="nofollow">https://support.mozilla.org/en-US/kb/about-config-editor-firefox</a>
</li></ul>Make sure you are not blocking content.
https://support.mozilla.org/en-US/kb/enhanced-tr2022-05-05T00:56:07-07:00fredmcd-hotmailhttps://support.mozilla.org/ar/questions/1376104#answer-1502627<p>Make sure you are not blocking content&#46;
</p><p>https://support&#46;mozilla&#46;org/en-US/kb/enhanced-tracking-protection-firefox-desktop
also see
<a href="https://blog.mozilla.org/security/2021/03/23/introducing-smartblock/" rel="nofollow">https://blog.mozilla.org/security/2021/03/23/introducing-smartblock/</a>
</p><p><a href="https://support.mozilla.org/en-US/kb/smartblock-enhanced-tracking-protection" rel="nofollow">https://support.mozilla.org/en-US/kb/smartblock-enhanced-tracking-protection</a>
</p>
<hr>
<p><a href="https://support&#46;mozilla&#46;org/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode" rel="nofollow">Diagnose Firefox issues using Troubleshoot(Safe) Mode</a> {web link}
</p><p>A small dialog should appear&#46; Click
<strong>Start In Troubleshoot(Safe) Mode</strong> (not Refresh)&#46;
Is the problem still there?
</p><p><br>
Many site issues can be caused by corrupt cookies or cache&#46;
</p><p><strong>Warning&nbsp;! ! </strong> This will log you out of sites you're
logged in to&#46; You may also lose any settings
for that website&#46;
</p>
<ul><li> <a href="https://support&#46;mozilla&#46;org/en-US/kb/delete-cookies-remove-info-websites-stored" rel="nofollow">Delete cookies to remove the information websites have stored on your computer</a> {web link}
</li></ul>
<ul><li> <a href="https://support&#46;mozilla&#46;org/en-US/kb/how-clear-firefox-cache" rel="nofollow">How to clear the Firefox cache</a> {web link}
</li></ul>