Add extra features and styles to make Thunderbird your own.Close
|User since||June 13, 2012|
|Number of add-ons developed||1 add-on|
|Average rating of developer's add-ons||Rated 5 out of 5 stars|
CSSsir is easy and handy tool which allows you to generate cross-browser code for main CSS- rules in a few clicks.
This CSS3 generator will be useful not only for web-masters and designers but also for common users.
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