Modified Cantofish with "Dictionary of Cantonese Slang" still works in Firefox 5.0.1

I got help from 9Dragons of Sheik’s forum and added entries from Dictionary of Cantonese Slang into Cantofish. Finally, Cantofish becomes a real Cantonese popup dictionary!

For Firefox 3.6

1. Download link:
2. Open the xpi file with Firefox (Open Firefox and press Ctrl+O) and it will be installed automatically.

For Firefox 4.0

1. Download link:
2. Open “Add-ons” from the upper left corner orange menu
3. Click on the wheel icon on the upper right hand corner and choose “install add-on from file”
4. Open it and restart Firefox.

How to add Cantofish to Firefox 4

For Firefox 5.0.1

1) In the Firefox address bar, type “about:config”
2) Right click on any line, choose “New” and then “Boolean”
3) Type the phrase “extensions.checkCompatibility.5.0.1” and press enter
4) Chose “false” as the value
5) Restart Firefox
6) Follow the instructions for Firefox 4.0