Almost perfect, but feedburner feeds won't work with this addon.

Works well but in the bottom of RSS page it creates such a garbage:

document.onselectstart = function () {return true; };document.oncontextmenu = function () { return true; }; document.onmousedown = function () { return true; }; document.onkeydown = function () { return true; }; document.body.onselectstart = function () {return true; };document.body.oncontextmenu = function () { return true; }; document.body.onmousedown = function () { return true; }; document.body.onkeydown = function () { return true; }; jQuery(document).unbind("keydown");jQuery(document).unbind("mousedown");

Compared to the few other similar rss feed indicator/preview extensions, this one works the best for me. The "Enable feed detection" setting should be on by default, though! I mean, that's the whole point of using this extension. And sometimes the indicator doesn't activate on a page until refresh the page.

OK

Works perfectly. The only thing really missing is the button to import the feed into Thunderbird that used to be there. Not sure if it's possible to implement that with WebExtensions (probably not). Anyway, good job :)