Sure, technically it only applies to an ethnic/political/racial/etc group of humans, but it's not _that_ far-fetched to apply it to the systematic and planned extermination of an entire group of software (in this case Firefox add-ons).
[0] http://www.macmillandictionaryblog.com/is-linguistic-inflati... ("linguistic inflation" is a term that i've been using in my own head for years without using it in conversation, so i'm glad to see others have the same complaint)
I think I sometimes confuse it with hyperbole.
I am hopeful for Qutebrowser, though; the dev is working on an interesting approach to extending the browser without WE support by allowing "userscripts" (not the Greasemonkey-esque ones). They can be written in tons of different languages. [Relevant documentation](https://qutebrowser.org/doc/userscripts.html).