If you have a multi touch mousepad and have already downloaded Firefox 4, you can enable mulitouch gestures by changing a few settings. This will allow you to pinch to zoom in Firefox 4 and enable the use of a twist gesture to switch tabs.
To enable pinch to zoom, you need to head over to the configuration for Firefox 4 which isn’t under the menu, but rather typed into your address bar. The functionality is already in there, we just need to turn it on.
About:Config Settings in Firefox 4
Type about:config in your address bar.
Warning that you should only change what you know.
Click I’ll be careful, I proimise!
Enabling multitouch gestures in Firefox 4
In the filter box type “browser.gesture” without the quotes and you will see the list of options.
Turning Pinch to Zoom in Firefox 4
For the Pinch to Zoom double click on each of the following entries and past in the cmd portion.
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
To enable twist gestures, change these entries
browser.gesture.twist.left Browser:PrevTab browser.gesture.twist.right Browser:NextTab
If you end up messing something up, you can go back in and change the entries back to the original blank to disable them.
Firefox 4 offers a new interface, speed improvements and features. To find out more, check out our Firefox 4 overview.