Here's what I've gathered from the video and from some variation on other people's tabs.

How far We?ve Come
MATCHBOX 20

INTRO: C G Am F

VERSE ONE:

C                                            G
I'm waking up at the start of the end of the world,
                                                Am
But its feeling just like every other morning before,
                                                   F
Now I wonder what my life is going to mean if it's gone,

C                                                  G
The cars are moving like a half a mile an hour and I
                                                    Am
Started staring at the passengers who're waving goodbye
                                              F
Can you tell me what was ever really special about me all this time?


CHORUS:
Am                                        F
But I believe the world is burning to the ground
F
Oh well I guess we're gonna find out

C
Let's see how far we've come
G
Let's see how far we've come

Am                                       F
Well I, believe, it all, is coming to an end
F
Oh well, I guess, we're gonna pretend,

C
Let's see how far we've come
G
Let's see how far we've come

VERSE TWO:

C                                                G
I think it turned ten o'clock but I don't really know
                                            Am
Then I can't remember caring for an hour or so
                                     F
Started crying and I couldn't stop myself

I started running but there's no where to run to

C                                             G
I sat down on the street and took a look at myself
                                                          Am
Said where you going man you know the world is headed for hell

Say your goodbyes if you got someone you can
F
Say goodbye to

Repeat CHORUS

BRIDGE:

Am
Gone, gone baby, it's all gone
There's no one in the corner
And there's nobody home
Well it was cool, cool
It was just all cool
Now it's over for me
And it's over for you
G

Bass and drums vamp, with a little lead guitar and piano that are low in the mix. The 
guitar interjects occasionally with some staccato strums of the Am and possibly a C/Am. 
it builds up to the stop, the last chord is a G.

LAST CHORUS:

Am                                        F
But I believe the world is burning to the ground
F
Oh well I guess we're gonna find out

C
Let's see how far we've come
G
Let's see how far we've come

Am                                       F
Well I, believe, it all, is coming to an end
F
Oh well, I guess, we're gonna pretend,

C
Let's see how far we've come
G
Let's see how far we've come
C
Let's see how far we've come
G
Let's see how far we've come
Am
Let's see how far we've come
F
Let's see how far we've come
C
Let's see how far we've come
G
Let's see how far we've come
Am
Let's see how far we've come
F
Let's see how far we've come
C (RING OUT)

That's it. Just listen to the song to figure out the strumming pattern, it's pretty 
And yes, I may be slightly wrong about the bridge section. :)