I removed Firefox, but then decided to reinstall it. However, I now can't get it to launch (Terminal --> "Firefox" says it's not installed and recommends I install it, but when I type apt install firefox, it tells me it's installed). Also, despite it being installed, no icon is created in the menu. I'm running Darnya KDE CE.
In Adept, the one possible clue is that I appear to have a conflict within libnss3 (Under additional details, it says there a conflict there). However, removing libnss3 also uninstalls Pidgin, OpenOffice, and a few more applications I have yet to discover. Reinstalling Pidgin and OpenOffice, however, recreated the conflict in Firefox.
Thanks for your tireless help,