Short answer: you can't.
Long answer: uninstall Shiretoko and install the official Firefox 3.5 from Mozilla
The 4 most popular methods of installation of Firefox 3.5 (Psychocats, Ubuntuzilla, Shiretoko+PPA, Swiftfox) are available in the "Install Other Versions" section of the Firefox optimization and troubleshooting thread. I personally tested all of them and they work like a charm, but I recommend methods 1 (Psychocats) and 2 (Ubuntuzilla).
Uninstall Shiretoko from terminal [see footnote] or synaptic:
Then follow the method 1 of that tutorial and you will have the original Firefox 3.5 in no time.
sudo apt-get remove firefox-3.5
Keep in mind that Shiretoko stores user profiles in the folder ~/.mozilla/firefox-3.5 instead of ~/.mozilla/firefox, so you might want to copy the profile from Shiretoko if you did important changes to it while using Shiretoko.
Because it's not available yet for update and probably won't be available until next Ubuntu release. They provide the Shiretoko with updates as a side-by-side installation for those who can't wait or want to test it in advance.
Originally Posted by DaftPyramid
How to run commands in a Terminal:
Open "Applications >> Accessories >> Terminal", then type or paste the code (CTRL+SHIFT+V) and hit Enter
. You might be prompted to enter your password. You cannot see it while you type, but it is there. Then just hit Enter
again to run the command. Please do not run commands without knowing what they do. If you do not understand what a command does, ask for explanations.
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