Firefox loading pages that come up in inelligble symbols?

You can check the network.http.* prefs on the about:config page and reset all bold user set network.http prefs to the default value via the right-click context menu -> Reset.

• http://kb.mozillazine.org/about:config

Check at least:

• network.http.accept-encoding: gzip,deflate

Could you check cor-el's solution to this question and see whether it works for you? Website displays random code instead of page.

Never mind, you got your own custom solution.