They're dropping support for firefox for linux it seems and will maintain support for chrome through their pepper api. Also they will maintain the latest binary release of flash for linux by pushing security patches. If anything they're dropping support for firefox and derivatives for linux and keeping support for chrome. But who uses firefox these days anyways?
As far as I can tell from the communication coming out of Adobe and Google, Adobe is dropping support for Linux, period. _Google_ will be maintaining Flash for Chrome on Linux. Which they largely have been anyway, as far as I can tell; they certainly haven't been shipping vanilla unmodified Flash (as you can tell by the fact that the version numbers of what they ship with Chrome don't match the official Adobe releases).
