Note: If you are upgrading from 127 or earlier, you will want to uninstall any old versions of r3dfox before upgrading to 128+. This will not touch your browser profile or settings. If you do end up with a new profile or no settings, follow these steps. Go to about:profiles, select the previous profile (Usually default-default) as default, and restart the browser.
The portable builds are fully portable, the profile directory is inside the browser folder. It does not touch appdata at all.
Changes on top of the previous 128.0 build:
New custom theme with red color scheme and rounded small trapezoid style tabs based off of modified Wavefox. (Can be disabled in settings if you prefer stock)
Discord, Snapchat, and Whatsapp should work stock now.
Site specific useragent overrides are back after being removed in 71. general.useragent.override.(site) works in r3dfox.
Fixed bookmarks folder icon being the wrong icon.
More privacy respecting default preferences.
Haven't tested on XP/Vista (extended kernel) nor have I stability tested. If you are using 7 RTM, you need to install the VC++ 2019/2022 redistributable, and copy the appropriate files from the r3dfox-7-RTM-fix.7z to the r3dfox installation directory, and it should work.
Please let me know what bugs or issues you encounter with it.