Druida

@FLOOD, Waterfox and Firefox are the same software. If an extension works in Firefox, should work in Waterfox. It is possible to install the Kaspersky extension in Waterfox without any problem, but its icon indicates the extension is not working. In fact, seems at least part of the Kaspersky extension is working properly in Waterfox, as can be seen below, where the extension blocked the access (“download blocked”) to a suspicious website: This is something Kaspersky can workout easily.

I cannot understand why the Kaspersky extension does not works on Waterfox, as it is essentially the Firefox with some privacy improvements.