Rated 5 out of 5 stars

I love this add-on . . but found one aspect or response very annoying. When I typed an email address which included a period within the 'local-part' and a period within the domain (which all email addresses will have), AutoUp would change the character immediately following the period to upper case.

This was the only thing, but since I frequently include email addresses in my emails, and as a developer, this really frustrated me. I reviewed the code in the add-on and was able to change one line in the autoup.js:

From:
if(( LeText.charAt( inc ) == '.' )||( LeText.charAt( inc ) == '?' )||( LeText.charAt( inc ) == '!' ))

To:
if((( LeText.charAt( inc ) == '.' )&&( LeText.charAt( inc+1 ) == ' ' ))||( LeText.charAt( inc ) == '?' )||( LeText.charAt( inc ) == '!' ))

[Basically adding "&&( LeText.charAt( inc+1 ) == ' ' )" so that a period must be followed by a space]

This solved my issue. FYI, I am using this add-on with Thunderbird 52 with no issues. Great job pastisman !!! Thank you so much for an excellent add-on.