mechanism for importing a CA certificate (try opening http://ca.hhome.me/root.cert.pem with Firefox on Android). Firefox will show a dialog offering to import the certificate in the same way it does in the desktop browser, however it doesn't seem to actually do anything with this certificate once it is actually imported. http://www.jethrocarr.com/2013/05/17/firefox-mobile-for-android-cas/ suggests that at one point it did check these certificates

Correct reply Browse to a page and click "add permanent exception" 2. Android settings: Security / Trusted credentials 3. Sync from Desktop 4. Browse to a certificate and click to add it as a root

I just tested (1) by with https://weave.hhome.me/ and it worked. (4) should work, but I'm not able to test it at the moment.

(2) and (3) will not work. (2) will import the cert into Android, not Firefox, and as far as I know, Sync doesn't synchronize the root cert DBs.