Among other things, a second Firefox keeps opening that I see in Task Manager. And when it does it seems to stall everything else.
Firefox seems to stall too often. Lately it also does the following: It seems to stall even as Task Manager (in WIndows) doesn't read "Not Responding" as it usually would when it stalls.
Instead a second facebook is shown with a lower Memory Usage, despite that no second Facebook window opens. I delete it and many times it starts again.
I have looked for malware, etc. with two different anti-virus software, AVG and SUPERantispyware. They find nothing but tracking cookies, even after this and after refreshing Facebook in Troubleshooting, this problem persists.
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More than one process is normal for the current Firefox. http://www.ghacks.net/2016/07/22/multi-process-firefox/
Multi-process Firefox is codenamed "e10s". https://wiki.mozilla.org/Firefox/multiprocess
Try to disable multi-process tabs in Firefox.
You can disable multi-process tabs in Firefox by setting
the related prefs to false on the about:config page.
browser.tabs.remote.autostart = false browser.tabs.remote.autostart.2 = false
http://www.ghacks.net/2016/07/22/multi-process-firefox/
Type about:config<enter> in the address bar. If a warning screen comes up, press the I Accept the Risk button. At the top of the screen is a search bar.
Separate Security Issue: Update your Flash Player Note: Windows users should download the ActiveX for Internet Explorer. and the plugin for Plugin-based browsers (like Firefox).
Note: Windows 8 and Windows 10 have built-in flash players and Adobe will cause a conflict. Install the plugin only. Not the ActiveX.
Flash Player Version: Version 27.0.0.130
https://get.adobe.com/flashplayer/ Direct link scans current system and browser Note: Other software is offered in the download. <Windows Only>
https://get.adobe.com/flashplayer/otherversions/ Step 1: Select Operating System Step 2: Select A Version (Firefox, Win IE . . . .) Note: Other software is offered in the download. <Windows Only> +++++++++++++++++++ See if there are updates for your graphics drivers https://support.mozilla.org/en-US/kb/upgrade-graphics-drivers-use-hardware-acceleration