PRS-T1 Firefox Android on rooted Sony T1, is it possible? Which version?

I have a Sony reader PRS-T1 which I rooted to Android, version numbers below.

I want to install Firefox on this thing.

Did anyone have any luck? Which apk (version, URL) did you use? Is the 40 MB limit even enough to install the thing before moving it? What did you use to move it?

Thanks!!!

Model number
PRS-T1

Android version
2.2.1

Kernel version
2.6.35.3
hudson@devuntu4 #1

Build number
FRG83

Version 3.1.00.18240