Recent answers to Firefox in Linux Mint 17.2: when opening a new tab, the cpu maxes out and causes the entire system to crash. I had already turned off hardware acceleration.https://support.mozilla.org/en-US/questions/10791522015-08-25T01:44:35-07:00What is the threshold of the resources?
Firefox uses too much memory or CPU resources - How to fix2015-08-25T01:44:35-07:00rmcguiganhttps://support.mozilla.org/en-US/questions/1079152#answer-772437<p>What is the threshold of the resources?
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<ul><li><a href="/en-US/kb/firefox-uses-too-much-memory-or-cpu-resources" rel="nofollow">Firefox uses too much memory or CPU resources - How to fix</a>
</li></ul>Downgrading to Firefox 28.0 did not help. I did a clean install in a VMWare Fusion virtual machine o2015-08-20T16:15:19-07:00brianmleehttps://support.mozilla.org/en-US/questions/1079152#answer-770586<p>Downgrading to Firefox 28.0 did not help. I did a clean install in a VMWare Fusion virtual machine of Linux Mint 17.2 Cinnamon and I still have the same problem. It is not specific to opening tabs, just opening a random website causes Firefox to hijack the cpu, then freeze the system and finally crash and reboot.
</p>There is an enormous difference between Firefox 28.0, a version from 17 months ago, and 38.2, which 2015-08-20T15:33:43-07:00jscher2000https://support.mozilla.org/en-US/questions/1079152#answer-770575<p>There is an enormous difference between Firefox 28.0, a version from 17 months ago, and 38.2, which is the current Extended Service Release (ESR) version. To learn more about ESR, see: <a href="http://www.mozilla.org/firefox/organizations/" rel="nofollow">http://www.mozilla.org/firefox/organizations/</a>
</p>I have temporarily solved the problem by downgrading Firefox to version 28.0. I noticed the Centos h2015-08-20T14:05:10-07:00brianmleehttps://support.mozilla.org/en-US/questions/1079152#answer-770557<p>I have temporarily solved the problem by downgrading Firefox to version 28.0. I noticed the Centos has held their version of Firefox to 38.2, perhaps for similar issue.
</p>Do you mean a (blank) new tab, or any new tab even if you are opening a link or bookmark into a new 2015-08-20T08:28:41-07:00jscher2000https://support.mozilla.org/en-US/questions/1079152#answer-770396<p>Do you mean a (blank) new tab, or any new tab even if you are opening a link or bookmark into a new tab?
</p><p>If it occurs with a (blank) new tab, what is your new tab page set to? You can double-check here:
</p><p>(1) In a new tab, type or paste <strong>about:config</strong> in the address bar and press Enter/Return. Click the button promising to be careful.
</p><p>(2) In the search box above the list, type or paste <strong>newtab</strong> and pause while the list is filtered
</p><p>(3) If the <strong>browser.newtab.url</strong> preference is bolded and "user set" to something other than about:newtab, you could try resetting it to the default to see whether that makes any difference.
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<p>Does Firefox work more normally in its Safe Mode? That's a standard diagnostic tool to deactivate extensions and some advanced features of Firefox. More info: <a href="/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode" rel="nofollow">Diagnose Firefox issues using Troubleshoot Mode</a>.
</p><p>You can restart Firefox in Safe Mode using either:
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<ul><li> "3-bar" menu button &gt; "?" button &gt; Restart with Add-ons Disabled
</li><li> Help menu &gt; Restart with Add-ons Disabled
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<p>and OK the restart.
</p><p>A small dialog should appear. Click "Start in Safe Mode" (<em>not</em> Refresh).
</p><p>Any improvement?
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