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"not reponding" appears with each action

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Windows 8. All actions in Thunderbird result in "not responding." This occurs whether I'm in safe mode or when McAfee Real Time Scanning is disabled. Computer is i-7 3.4 GHz with 16 GB RAM which is never maxed out in task manager. I've gone through all of the help suggestions except I can't seem to figure out how to click on system tray in a manner that will bring up McAfee.

Windows 8. All actions in Thunderbird result in "not responding." This occurs whether I'm in safe mode or when McAfee Real Time Scanning is disabled. Computer is i-7 3.4 GHz with 16 GB RAM which is never maxed out in task manager. I've gone through all of the help suggestions except I can't seem to figure out how to click on system tray in a manner that will bring up McAfee.

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I was able to exclude my TB profile folder as well as the TB folder from McAfee scanning. McAfee did not allow me just to type in an address for folders but required me to navigate, then click on them. As a result I wasn't able to place a slash at the end of the folder name. I rebooted but no difference in the problem. Please advise. Curtis

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Not using McAfee here, so I cannot help with this any more. Please contact McAfee or ask in a McAfee forum. I'm certain they are aware of the problems they are causing for Thunderbird.