Within minutes of launching Keyboard Maestro for the first time, Safari started behaving strangely: I’d press the keyboard short for “Show Next Tab,” and the Skitch app would take control.
After checking to see what might have changed with Skitch’s activation keys, I realized Keyboard Maestro might be responsible. I quickly discovered the problem: the default hot keys for Keyboard Maestro’s “Activate Last Application” and “Activate Next Application” macros supersede Safari’s keyboard shortcuts for “Show Previous Tab” and “Show Next Tab.”
Checking a little further, I found the same conflict with the tab selection shortcuts in Firefox and Chrome browsers.
I see several ways this conflict could be avoided for new Keyboard Maestro users:
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Choose Activate Application hot keys that do not conflict with mainstream OS X applications.
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Deactivate the macros by default.
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Eliminate the macros because they duplicate the function of OS X’s Command+Tab application switching.