This is how to install Gears on Firefox 3.5 for your Ubuntu 9.04 system. This will allows you to use Offline Gmail.
Step 1
Installing Firefox 3.5 from ubuntu-mozilla-daily PPA
Head to https://launchpad.net/~ubuntu-mozill…y/+archive/ppa and follow the instructions to add the repo, then install the “firefox-3.5″ package. Or if you just want to copy-past commands into a terminal:
sudo su
apt-key adv –recv-keys –keyserver keyserver.ubuntu.com 247510BE
echo “deb http://ppa.launchpad.net/ubuntu-mozilla-daily/ppa/ubuntu jaunty main” >> /etc/apt/sources.list
aptitude update
aptitude install firefox-3.5
exit
Step 2
Installing Google Gears
Linux x86_64: http://gkovacs.xvm.mit.edu/google-ge…4-0.5.25.0.xpi
Uninstalling Google Gears and Firefox 3.5
First go [...]