I have ABP also.
45 Cookies, *REALLY*?!
They have *CRAPFULS* of javascript in that page... therein lies your answer.
16 external "3rd party/different domain" Javascript files plus 9 inline javascript statements, some in the body (BAD to inline in the body).
That isn't including the files the jaavscripts force load.
Come on... you really expect something with a bahmillion lines of Javascript to not crash after a long time?
They also have a bahmillion lines of CSS.
They are using OpenGraph, with the Facebook extensions.
They have embedded ActiveX in there.
They are using Tables for layout because it looks like that can't get CSS to work for the tableized data. Makes the Rendering engines slow.
I just found 4 more javascript entries in Tables Cells.
And even more javascript in the Footer. Wow, 11 inline snippets and 15 external files.
Yuck.
Not to mention the bare index file is 2210 lines long and HYARGE.