toys19, I’m not sure if there are any additional steps because you are running Linux, but for for Firefox, you need to install the greasemonkey plugin first.
I still can’t get it to work – anyone able to explain in simple language – firefox with greasemonkey installed here but I seem to have no way of editing the script that I can see
Here’s one way to update it:
1) Download the script, save it to your desktop
2) Open it with notepad or some other plain text editor
3) Add the following line, after line 4 (which looks similar)
// @include http://singletrackworld.com/forum/topic/*
4) Save it
5) Drag it into your Firefox window
6) Do any other necessary stuff