For the Tweak Network Firefox Extension to work with K-Meleon 74.0 and K-Meleon 75.0 Beta, download Tweak Network h
https://addons.cdn.mozilla.net/user-media/addons/327/tweak_network-1.8-fx.xpi and rename it to {DAD0F81A-CF67-4eed-98D6-26F6E47274CA}.xpi
Next copy {DAD0F81A-CF67-4eed-98D6-26F6E47274CA}.xpi into the extensiosn folder.
Then download Tweak Network
http://kmext.sourceforge.net/extensions/tweak_network.7zfrom K-Mwleon Extensions Central
Last extract macros from Tweak Network
http://kmext.sourceforge.net/extensions/tweak_network.7z into the K-Meleon Root Folder.