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On Mac OS X, multitouch with Firefox 4 RC does not work.

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Multitouch support (such as changing text sizes) does not work on Mac OS X when using Firefox 4 RC

Multitouch support (such as changing text sizes) does not work on Mac OS X when using Firefox 4 RC

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Firefox 4, unlike Firefox 3 or chrome, is 64 bit application, and MultiClutch works only with 32 bit ones. Here's an update of MultiClutch's inputmanager to 64 bit: http://blog.prashantv.com/2009/minor-multitclutch-update/

Remember to remove /Library/InputManagers/MultiClutchInputManager though, or you may experience some problems

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Some gestures have been removed in Firefox 4.
You can restore the zoom feature by changing the values of the related prefs on the about:config page.

browser.gesture.pinch.in cmd_fullZoomReduce
browser.gesture.pinch.in.shift cmd_fullZoomReset
browser.gesture.pinch.out cmd_fullZoomEnlarge
browser.gesture.pinch.out.shift cmd_fullZoomReset
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Got it. Thanks.

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cor-el

Do you know why the multitouch has been disabled ?

Best regards

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Not using multiclutch. Using multitouch, like on the newer macbooks, etc.