I use Firefox on my Mac Pro and on my Macbook and need to use the
# sign for C# programming and hashtags in Twitter.
I know that Option + 3 should give me
# and this works without problem on my macbook. However on the Mac Pro I have a UK apple wireless keyboard (aluminium version), which when I use Option + 3 it switches to the third tab.
On my mac book I do this with Cmd + 3, however on the Mac Pro it switches with both Cmd + 3 and Option + 3.
Does anyone else have this same problem, and is there a setting which changes this behaviour or another key combo which does this?