The internal light and the electric window regulator may be two separate problems, but could be related. Don't be surprised if these are not related. The simplifed checkout procedures found in repair manuals may indicate a bad switch assembly - but don't believe that right-away without further checks. Sometimes, the problem is broken wires in a boot going from the door to the body. This bundle flexes each time the door is opened and wires have been know to part inside their insulation without breaking the extruded insulation. Such breaks usually happen with the driver's door, although the other doors are not totally immune. The driver's door has the big bundle. Remove the switch assembly and check it for continuity in all switch positions before replacing. Hopefully, John_G will chime in and tell us more. He knows about the various methods that Ford uses for controllng the interior lamps

I have never seen a firefox add-on called that, I did a search on firefox extensions page and nothing with realplayer in the name even came up. That is a new one on me. You can always try getting Real Player again should you find you need it. Or you can get something like Real Alternative which will play Real stuff and is light and easy. Download Real Alternative RealPlayer as stated by MozillaZine you have 2 alternatives for Real media. since you gave me the exact name I googled it and sure enough it apparently does appear for some people and it looks like it is causing a lot of problems and it can be disabled here are the results Here is a link that might be useful: search result

marie- I have four browsers installed on my computer: Internet Explorer, Firefox, Opera, and Chrome. None of them interfere with one another, even when several of them are simultaneously open. I don't know why you are having some of the problems you describe, but you shouldn't be worrying about having to choose between Firefox and Internet Explorer. They are each discrete programs, just like Word or Notepad are discrete programs. Something else is going on here, or you have accidentally made some unintended changes to Internet Explorer, but it should have nothing to do with having two browsers installed.

I am afraid you have one of the rogue infections and if that is the case please do NOT run any type of programs especially any that would remove any type of files especially temp files because these rogues hide your files as temp files and if you run anything you run the risk of deleteing your actual files. To fully remove this nasty from your pc please go to the link I am providing, register there, and post a new thread in the area I link you to. Do not follow instructions you may find there that sound similar to your problem each person needs their own instructions. The team there is wonderful and will work with you to rid you of the problem. If you need help getting there let me know I am there also. Analysis and Malware Removal that forum has helped many others from here and elsewhere to clean completely their infection.