How can I get rid of yahoo companion popup?

Every time I sign onto yahoo.com I get a popup asking me to upgrade yahoo companion. How do I stop this popup?

I have windows xp and recently updated my yahoo messenger to 9.0. When I did that I started having problems. When I click the email icon, which looks like an envelope, I get an error msg that YM needs to shut down. It also shuts down when I click those...

yahoo page when click on "page option " get one small window like popup get under that link . i want to know what is component and how is write javascript please give a clue.

When I try to go to my.yahoo.com, now all of a sudden I get a popup window that says: Authentication required - The server https://pr.comet.yahoo.com443 requires a username and ...show more

Every time - on every browser - when I first open the NEW my.yahoo home page (default home page) I get a popup asking me to add content for yahoo mail, even though I already have it ...show more

I tested the popup blocker and didnt see a popup but it still said zero

Every time I open my Yahoo email inbox, a tab comes up for "loudpopz780" and flashes. If I close the tab, it reappears the next time I reopen Yahoo. I tried briefly opening the tab and it shows up as a request to establish a "messenger...

I cannot edit my toolbar. When I click choose buttons or edit buttons I get "us.edit.companion/yahoo bla bla" et. What the hell

I have no idea on how to get rid of Yahoo! Companion toolbar. I want to atually uninstall it, not just uncheck it from the view, toolbar menu. Could someone plz help me?