For cellio, and anyone else deeply into the Talmud:

[jducoeur]

Since I suspect you aren't yet following the mozilla_exts feed, check out this entry, which starts out: "Combining the power of Firefox, Google and the Mechon Mamre textlibrary, this extension allows you to search the Hebrew texts ofTana"ch, Mishna, Talmud Bavli, Talmud Yerushalmi, Tosefta and MishnaTorah. You can search as broadly as all of these sources or asspecifically as a single book of Tana"ch, a single tractate of Mishnaor a single set of Halachot of the Mishnah Torah." Which I suspect means significantly more to you than it does to me...