Here's what I get for the bass in From Your Boy:
It's in F Major. The bass is using a distortion pedal. The first riff (intro and verse 1 & 2) is F (at E1), Bb (A1), C (A3), and back to Bb. Repeat enough times to get to the chorus (9 times I think). In the intro and first verse, the bass notes are sparse (sustained root note on first beat of each measure with a quick eighth note leading to the next measure (|1>—–1|3>—&ndash

|1>—–1| or perhaps |1>11—1|3>

3&mdash

|1>11—1|)). For verse 2, it goes into pretty straight 8th notes. The last time through the riff at the end of verse 2, play an extra measure of Bb.
The rest of the song, the bass plays a second riff of F (E1), Bb (A1), F (E1), and C (A3), all eighth notes. This is what the bass plays behind the melodic solo you tabbed out.
That's what I got anyway. Only two riffs, but it sounds great! Cheers.