Rated 4 out of 5 stars

First install: "Disable Add-on Compatibility Checks"
https://addons.mozilla.org/en-US/thunderbird/addon/checkcompatibility/
1. You must go to settings "Forecastfox Weather"
2. You need to enable English
3. Is Required restore the initial settings by clicking the button below
4. Customize as you wish.
Works in FF35 only then!

Rated 5 out of 5 stars

The size of the pop-ups increased! Thank you!

Rated 4 out of 5 stars

Necessary to increase the size of the pop-ups!
In the latest version, when you hover the mouse pointer over the icon weather, a window pops up a very small size, in which the font is almost unreadable! Necessary to increase the size of the pop-ups! If this is impossible, as the move to the previous version, where everything was okay?