Recent answers to Multiple instances of Firefox open since Update.https://support.mozilla.org/km/questions/12769912020-01-11T05:15:39-08:00When you type in the address bar about:studies you will see :
"cookie-restrictions-strict-lis2020-01-11T05:15:39-08:00McCoy-therealhttps://support.mozilla.org/km/questions/1276991#answer-1280182<p>When you type in the address bar <code>about:studies</code> you will see&nbsp;:
</p><p>"cookie-restrictions-strict-list@shield.mozilla.org•Complete
This study examines the effects of advanced cookie blocking. We may block extra cookies on some websites. The results of this study will help us to develop the next iteration of cookie blocking for all users."
</p><p>Also see&nbsp;:
<a href="https://github.com/mozilla/cookie-restrictions-strict-list-study" rel="nofollow">https://github.com/mozilla/cookie-restrictions-strict-list-study</a>
</p>You also still have the hotfix installed to add a new intermediate certificate for signing extension2020-01-11T04:56:27-08:00cor-elhttps://support.mozilla.org/km/questions/1276991#answer-1280175<p>You also still have the hotfix installed to add a new intermediate certificate for signing extensions that is no longer needed because this certificate is builtin.
</p>
<ul><li> hotfix-update-xpi-intermediate 1.0.6 (hotfix-update-xpi-intermediate@mozilla.com)
</li></ul>I've looked everywhere for some information on the "Cookie Restrictions"
study and can't find anythi2020-01-11T02:18:20-08:00user104147805413306348376805769878442569366https://support.mozilla.org/km/questions/1276991#answer-1280134<p>I've looked everywhere for some information on the "Cookie Restrictions"
study and can't find anything. I came across another user who had it in their System Details but, wasn't reporting any problems with it.
</p><p>If everything is working well you shouldn't worry about it.
</p><p>Maybe someone more knowledgeable about it will toss in a comment.
</p>I followed your instructions to eliminate the "studies" only to find that I have in fact, NO STUDIES2020-01-10T21:33:52-08:00chris.mowathttps://support.mozilla.org/km/questions/1276991#answer-1280076<p>I followed your instructions to eliminate the "studies" only to find that I have in fact, NO STUDIES checked.
So I'm not sure what the "Cookie Restrictions Strict List Study 2.1" is all about. I don't see that anywhere either.
</p><p>In the meantime, I seem to have resolved the Firefox issue for now. But whatever changed, really damaged my boot record so now I'm dealing with that.
It is NOT a virus. That much I know.
</p>I also notice that you have a study running:
Cookie Restrictions Strict List Study 2.1
You can Remov2020-01-10T16:03:16-08:00user104147805413306348376805769878442569366https://support.mozilla.org/km/questions/1276991#answer-1280018<p>I also notice that you have a study running:
Cookie Restrictions Strict List Study 2.1
</p><p>You can Remove it if you think that it's causing the issue:
About Studies
<a href="https://support.mozilla.org/en-US/kb/shield" rel="nofollow">https://support.mozilla.org/en-US/kb/shield</a>
</p>Hi chris.mowat,
This could be caused by a malware infection on your computer or it could be caused b2020-01-10T15:54:41-08:00user104147805413306348376805769878442569366https://support.mozilla.org/km/questions/1276991#answer-1280016<p>Hi chris.mowat,
This could be caused by a malware infection on your computer or it could be caused by an add-on that you have installed.
</p><p>You can try these free programs to scan for malware, which will
work with your existing antivirus software:
</p><p>Microsoft Safety Scanner
<a href="https://docs.microsoft.com/en-us/windows/security/" rel="nofollow">https://docs.microsoft.com/en-us/windows/security/</a>
threat-protection/intelligence/safety-scanner-download
</p><p>MalwareBytes Anti-Malware
<a href="https://www.malwarebytes.com/premium/" rel="nofollow">https://www.malwarebytes.com/premium/</a>
</p><p>Anti-Rootkit Utility - TDSSKiller
<a href="https://www.bleepingcomputer.com/download/tdsskiller/" rel="nofollow">https://www.bleepingcomputer.com/download/tdsskiller/</a>
</p><p>MalwareBytes AdwCleaner
<a href="https://www.malwarebytes.com/adwcleaner/" rel="nofollow">https://www.malwarebytes.com/adwcleaner/</a>
</p><p>ESET Online Scanner
<a href="https://www.eset.com/us/home/online-scanner/" rel="nofollow">https://www.eset.com/us/home/online-scanner/</a>
</p><p>(Malwarebytes Chameleon - allows installation of Malwarebytes on an infected system
<a href="https://www.malwarebytes.com/chameleon/" rel="nofollow">https://www.malwarebytes.com/chameleon/</a>)
</p><p>Running more than one or all of the above mentioned Scan Tools
is recommended since they scan at different levels of your computer.
And, of course, run the scans with Firefox Closed.
</p><p>There are also extensions available to help protect against malware, such as:
</p><p>Malwarebytes Browser Guard
<a href="https://addons.mozilla.org/en-US/firefox/addon/malwarebytes/" rel="nofollow">https://addons.mozilla.org/en-US/firefox/addon/malwarebytes/</a>
</p><p>Further information can be found in the
Troubleshoot Firefox issues caused by malware article:
<a href="https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-caused-malware" rel="nofollow">https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-caused-malware</a>
___________________________________________________________________
</p><p>If that doesn't fix the issue, try running Firefox in it's Safe Mode:
<a href="https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode" rel="nofollow">https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode</a>
to see if the issue goes away. If it does, it's likely caused by an add-on, so you will need to use trial and error to determine the culprit.
</p><p>Safe Mode will temporarily disable your extensions and themes, turn off hardware acceleration and reset toolbar and button customizations. When you leave Safe Mode and start Firefox up normally, your extensions, themes, and settings will return to the state they were in before you entered Safe Mode.
</p><p>With Firefox open:
select Menu
select Help
select Restart With Add-ons Disabled
on the dialog select Restart
on the next dialog select Start In Safe Mode
(Do Not select Refresh)
</p><p>With Firefox closed:
press and hold the Shift (in Mac: Option) key
launch Firefox
on the dialog select Start In Safe Mode
(Do Not select Refresh)
______________________________________________________
</p><p>To quit Safe Mode:
select Menu
select Help
select Restart With Add-ons Enabled
</p><p>Or, Exit Firefox.
</p>