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.
Notable bugs:
The 32 bit build is built with --disable-sandbox. With the sandbox enabled under Vista, the browser fails to open multiple processes which breaks the browser. The 64 bit build is fine. Considering Mypal68 globally disables the sandbox, I don't think it's that bad. If this really is a big issue then please pr a fix.
Changes on top of the previous 129.0 build:
Option for instant one off searches and enabled by default. (Search engines under "This time, search with:" in urlbar take a single click to search)
Fixed broken context menu padding with r3dfox theme.
Enabled privacy.sanitize.useOldClearHistoryDialog (More options listed when using custom settings for history)
Haven't tested on XP (OCAPI) nor have I extensively 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.