Decoding to ASCII large binary strings kills X

[Fibonacci]

Hello,

I've recently stumbled upon this Uncyclopedia article, which is all written in binary: http://uncyclopedia.org/wiki/01000010_01101001_01101110_01100001_01110010_01111 001; fortunately I found a bin-to-ASCII decoder here. Trying to decode the huge 14th section there, however, kills X (and whatever was running on it) and opens another login screen as soon as a response is received from NickCiske.com. It's not the clipboard, for I can copy and paste the text without a problem; it's not the decoder, for I can decode other (shorter) sections without a single problem; and it's not hardware because, believe it or not, WinXP running on the same machine has no problem at all decoding that big chunk of text (it's a tongue-twister if you're curious).
What's happening, then, and what can I do about it?

Thanks,

-Fibo

[Fibonacci]

Apparently this happens whenever the address provided to Firefox is too long - I don't know how long is too long, but long enough GET requests kill X, so I think it's about too long addresses. Only on Linux, though - they work fine on Windows.

Any ideas?
At least anyone else experiencing the same problem?

Thanks,

-Fibo