Recent answers to How can autoplay video be stopped in Firefox 24https://support.mozilla.org/en-US/questions/9745152013-10-17T02:02:06-07:00To stop ads popup try ABP.
Try Firefox Safe Mode to see if the problem goes away. Safe Mode is a tro2013-10-17T02:02:06-07:00Nellus91https://support.mozilla.org/en-US/questions/974515#answer-490858<p>To stop ads popup try <a href="https://addons.mozilla.org/en-US/firefox/addon/adblock-plus/" rel="nofollow">ABP</a>.
</p><p><strong>Try Firefox Safe Mode</strong> to see if the problem goes away. Safe Mode is a troubleshooting mode, which disables most add-ons.
</p><p><em>(If you're not using it, switch to the Default theme.)</em>
</p>
<ul><li> On Windows you can open Firefox 4.0+ in Safe Mode by holding the <strong>Shift</strong> key when you open the Firefox desktop or Start menu shortcut.
</li><li> On Mac you can open Firefox 4.0+ in Safe Mode by holding the <strong>option</strong> key while starting Firefox.
</li><li> On Linux you can open Firefox 4.0+ in Safe Mode by quitting Firefox and then going to your Terminal and running: firefox -safe-mode (you may need to specify the Firefox installation path e.g. /usr/lib/firefox)
</li><li> Or open the Help menu and click on the <strong>Restart with Add-ons Disabled...</strong> menu item while Firefox is running.
</li></ul>
<p><img class="wiki-image frameless" src="https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/gallery/images/2013-07-08-18-32-01-a08d8d.png" alt="FirefoxSafeMode" width="520">
</p><p><em>Once you get the pop-up, just select "'Start in Safe Mode"</em>
<img class="wiki-image frameless" src="https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/gallery/images/2012-07-27-09-26-19-ee761a.png" alt="Safe Mode Fx 15 - Win" title="">
</p><p><em><strong>If the issue is not present in Firefox Safe Mode</strong></em>, your problem is probably caused by an extension, and you need to figure out which one. Please follow the <a href="/en-US/kb/troubleshoot-extensions-themes-to-fix-problems" rel="nofollow">Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems</a> article for that.
</p><p><em>To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.</em>
</p><p><em>When you figure out what's causing your issues, please let us know. It might help other users who have the same problem.</em>
</p><p>Thank you.
</p>