Having said that I spend a good chunk of my time on Firefox while using my Mac and there are some very useful multitouch gestures you can add! There are a couple of other tutorials out there already, but for some reason the ones I've found only talk about the twist left/right to move to the previous/next tab. Being curious me, I went exploring and found out how to get some more equally helpful gestures working!

Here is a screenshot of my about:config page.

Firefox Multitouch Gestures

Adding/modifying these values is very simple - here is a quick tutorial:

1. Open firefox and enter about:config in the URL bar
2. Filter the list of gestures by entering: gesture into the filter (optional by recommended)
3. Modifying a value:
   • Double click on an existing preference name (eg: browser.gesture.twistleft)
   • Enter a value (eg. Browser:PrevTab)
4. Adding a value:
   • Right click somewhere in the window (probably best on empty space)
   • Select New->String
   • Enter a preference name (eg: browser.gesture.swipe.down.alt)
   • Enter a value (eg. History:UndoCloseTab)
   • Note: You will have to refresh the filter for your new custom value to appear.
5. Close the 'about:config' tab - and you're done!

You might want to play around with it to find out what you feel is most useful for your browsing habits, but these are the ones that I like the best/use the most:

The zooms are also quite cool but they are there by default so it should work without you having to do anything. Hint: hold down shift and zoom in/out and it'll reset the magnification to the default.

Once you get used to your gestures you'll wonder how you lived without them! Be interested to hear what other gestures you guys have set up

So after the amazing discovery, decided to put up a few photoshop shortcuts that I feel are essential. I'm no photoshop guru, but these are the shortcuts that I probably can't live without. I'm using Photoshop CS2, but most these shortcuts should probably work with most versions of photoshop. Seems like Adobe likes multi-keyed shortcuts, so organised them into the number of keys on the keyboard you need to press - wonder if there are any more than 4!

Single key shortcuts

• v - changes to 'move' mode. So if you have a layer selected, you can now drag it with your mouse or nudge it.
• m - changes to 'marquee' mode.
• a - changes to 'direct selection' mode. If you have an active vector path, you can now go 'right click -> make selection' and then you can fill the selection with colours etc.
• x - switches the foreground/background colours
• d - resets the palette to the default of foreground/background colours to black/white respectively
• [ & ] - decreases & increases (respectively) your brush size

Double key shortcuts

• alt+backspace - fills the layer with foreground colour
• ctrl+backspace - fills the layer with background colour
• ctrl+d - deselects your selection. Handy if you are horrible at selecting stuff like me.
• ctrl+e - merges your current layer with the layer below it
• ctrl+g - groups the layer(s) you have currently selected into a folder

Triple key shortcuts

• ctrl+alt+z - goes back through the history undo-ing the previous actions (find ctrl+z useless as it just undoes the last step)

Quadruple key shortcuts!

• ctrl+alt+shift+s - opens the 'save for web' dialogue where you can choose to save as jpg, gif, png etc.
• ctrl+alt+shift+e - creates a new layer and puts in that single layer whatever you see on the screen right now

Mouse+keyboard combination
(not exactly a shortcut, but just as useful!)

• shift - when creating a selection, holding down 'shift' while dragging the selection keeps the proportion. Nice when you need a perfect circle/square, or if you're dragging in a logo/image
• space - when creating a selection, holding down 'space' will let you move the location of your selection. Always found it hard to know where to create the selection so it is exactly where I need it to be.
• ctrl - if you ctrl+click on a layer, it will select the outline of the image on that layer.