Firefox and Proofing

Firefox, starting with version 3.0.2, includes a spellcheck with the obligatory sequential use of the letter "ё" in the letter, and not selective, as it was before. Thus, now the words corresponding to the norms of the Russian literary language are marked as incorrect. For those who love Russian and are guided by modern spelling standards when checking spellings, there is an addition to the Russian spellchecking dictionary without the support of the letter “ё” ;)

Update: A patch has been proposed for Firefox :

This is update for Russian spellchecking dictionary, that makes "YO" letter optional, as it should be.

Update 2: Hooray! Firefox developers have shown universal wisdom and linguistic flair by releasing Firefox 3.0.4 , in which "the letter" ё "in the Russian spellchecker dictionary is made optional."