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tf_dc

macrumors member
Original poster
Feb 16, 2016
88
82
Dear all, sorry if a similar question was posted here before.

Since macOS 10.13 update I'm experiencing a strange issue with Firefox: it became extremely slow to react to the hot keys/keyboard shortcuts like Cmd+T, Cmd+W, Cmd+C, Ctrl+Tab etc. Any attempt to do anything using the keyboard results in a "beachball", a blue selection of the appropriate menu section and a 5 seconds lag. Interestingly, the same actions using mouse pointer (open/close/switch tab, copy/paste etc) go smoothly with zero lags or issues.

It is only with Firefox though. Safari, Terminal, Finder - no problems manipulating tabs and contents using the keyboard.

I even removed Firefox, deleted it's profile from ~/Library/Application Support and reinstalled it clean (56.0.1 now). Extensions, no extensions - no matter.

MBP 13", 2015, 8Gig RAM

Anyone with the same trouble? Any ideas how to fix this?
 
OK, just a report - with macOS 10.13.1 beta 4 the problem is gone.
 
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