Hibernate, sleep or just a low power standby kinda deal?

Whatever the case. Look over your power setting for anything that may help. Make sure to check the bios settings. There is commonly an auto setting for hibernate or sleep that needs to be set to S1 or S3

I'll check bios and see. This is when I walk away for a bit and come back to my desk after some period of time ... monitor & hard drive are off. Everything spools back up except firefox.

Try to disable hardware acceleration in Firefox.

• Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"
• https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

• https://hacks.mozilla.org/2010/09/hardware-acceleration/

Boot the computer in Windows Safe Mode with network support (press F8 on the boot screen) as a test to see if that helps.

Well, I disabled hardware acceleration and that didnt seem to help. I still have to completely close the program and restart it. seems like an awkward work around. :(

It is unclear what Firefox is doing upon waking from sleep. Or not doing, as the case may be.

Likely related forum threads (unsolved):

• FF 21.0 Unresponsive after Sleep - Windows 7.0
• browser freezes after resuming from sleep

Two bugs have been filed recently relating to sleep on Windows 7 (64-bit). Neither seems to have progressed toward a solution as of yet:

• 859038 – UI stops painting after resuming from sleep
• 873110 – When OS Windows 7 wakes up after sleep Firefox doesn't respond to actions

(It was also posted on a closed bug: https://bugzilla.mozilla.org/show_bug.cgi?id=765215#c91.)

If forum members can contribute to the development, please feel free to pitch in. Otherwise, it's generally not helpful to add comments to bugs (unless there is a call for test cases), but you can register on the Bugzilla site and "vote" for them to be fixed. See:

• Bugzilla Etiquette
• Voting