Installed b/c my spellcheck stopped working in Facebook posts.
Almost perfect- Excellent for grammar & spelling.
Even corrects my most repeated error (typing form when I want from, which other spellchecks ignore b/c they are both correct spelling).
However, the way it works by opening a new tab & having to return to comment and then copy/paste, instead of making corrections inside the comment is not ideal.
A pop-up window would be preferable if in comment corrections cannot be done.

I see your response but see no way to reply.
I was trying to use LT in FACEBOOK comments. I did not try it in Twitter yet.. UPDATE: works perfectly after re-install on FB & Twitter-
added a star..