Firefox 35.0.1 will not fully open in Windows 7 - mem use goes to 100% CPU to 90% & Firefox locks up

Today, Firefox 35.0.1 tries to open in Windows 7 but mem usage goes to 100%, CPU goes to 90% & Firefox along with the whole computer locks up

You can check if you can start Firefox in <u>[[Safe Mode|Safe Mode]]</u> by holding down the Shift/Options key.
You can try to disable hardware acceleration in Firefox.
*Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"
You need to close and restart Firefox after toggling this setting.
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
*https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration
Boot the computer in Windows Safe Mode with network support (press F8 on the boot screen) as a test.
*http://www.bleepingcomputer.com/tutorials/how-to-start-windows-in-safe-mode/

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