Adobe Reader V6 Side Effect

Hi,

I use FF (FireFox) 3.6 (had an issue with FF4.0) and KernelEx on my
Win98se computer.

Not long ago, I installed AR6 (Adobe Reader 6) after I removed V5. I
also installed IE 5.5 before installing AR6.

Ever since I installed AR6, when I launch FF, most of the time it
automatically goes to Mozilla's "Check Your Plugins" page. This never
happened before.

Note: I have all automatic updates unchecked in FF and FF launches to
"Show a Blank Page" ("General" options) .

Any ideas on what may be the cause of this "Check Your Plugins"
nuisance?

Thank You in advance, John