CHM reader versions used:
Firefox versions used:
1. 3.0-r1 (x86_64-gcc3)
2. 3.0 (x86-gcc3)
The respective versions of chm reader install without problem under the two versions of Firefox mentioned.
Trying to open a chm document does not do anything. (This was tried with various chm documents that open without problem under firefox 2 and its corresponding chm reader versions).