I installed Adblock plus and immediately noticed several issues. It took forever to bypass the NY Times opening ad and get to the real front page - troublesome, and time-consuming but at least I avoided the ad. More importantly, I couldn't quit Firefox without force quitting. If I used Command Q or selected Quit Firefox from the menu, I got the spinning beachball of death. When I disabled Adblock, the problem persisted. When I uninstalled Adblock Plus the problem was resolved and I could quit Ff in my usual manner. Any solutions here or do I just forget about Adblock Plus - too bad, it seems like a great idea even though it slowed down NYT (it was faster just hitting the skip ad button after I uninstalled Adblock Plus)