@disrupted - Unlike me - You have a good memory
p.s. I hope the reconfigured pref in about : plugins (= about:plugins with spaces) shows the paths to all modules. If not copy the complete Firefox (or older k-m) plugin folder with installed modules to K-Meleon.1.5.
My point - when You have all the plugins.dlls assembled in one plugins folder (Opera's, Netscape's... Firefox' ... even old IE's that used plugins may still do) You have defeated all incomplete(=buggy) installers because You can copy the whole plugins folder to the next browser & version.
BTW. this was the bulk of my browser config knowledge from k-Meleon 0.6 - 0.8.2 - and believe it or not: K-Meleon, Opera, Mozilla (Firefox did not exist yet )... and even IE used the plugins I wanted.