I have two old Mac Minis both running OS X 10.4 Tiger.
One is a G4 so I'm using TenFourFox for PowerPC.
The other has an Intel processor and I'm having some trouble with Opera 10.62.
(The point is I want to use trello.com and old browsers like FireFox 3 or standard Safari from the 10.4 OS won't work).
What other options am I missing?