Around the first of the year I went to my "bookmark" on "foxfire" to go to "Bass Resource Forum" as I had done for years and found a blank page with only the words "Invalid Http Request Header". I thought that maybe the sight was down for maintenence or something and tried a little later with the same result. Ditto the next day, then the next week, even when I seached "Bass Resources" with foxfire I had the same results. This morning I "Googled" it and found this forum alive and well.(thank heavens). Glad to  be back, can anyone explain the "Invalid Http Request Header" that still appears when I attempt eo get through with "foxfire"?

I had the same problem with another site.  Must have been a glitch. 

Broken code. Or you got a virus. Or both.

Maybe a temporary outage and it got cached.

You probably got hit with a virus. I use only FireFox and have not had a problem.

probably a virus or something wasn't allowing you to access the page.  I have had that happen a few times.