Last night when I was on the computer at the University, I had the same problem occur. (Note the version of Firefox installed on these computers is still 1.5.04. I've no idea why it hasn't been upgraded). This had never happened to me before.
I was on the BleepingComputer site and was responding to a thread, but I wanted to look up some information on other sites. Something on one of those pages triggered this problem: after I found the information I wanted I went back to responding in the thread, and every time I hit the apostrophe the find
box would open up and then everything else I typed went into the find
box. Here's what I did to solve the problem:
First I cleared cache to see if that would fix it. It didn't.
Next, I checked 'about:config
' to see if anything looked as though it had changed. Nothing had.
Then, I went to Tools
tab --> Advanced
option. There were checks in the first three boxes. At home, I have them all unchecked, so I removed those check marks and voila - the problem was solved, and I could use the apostrophes in typing.