There is a newer (TenFourFox FPR25) version than this 'unstable' build v24 & can be downloaded
and installed according to an instructions page. The file is named TenFourFox_G3 and minor set
ups are required; on first-run to use this, in the Early 2006-2008? Intel-based Mac with Tiger 10.4.11
and Leopard 10.5.8. Suggestions & instructions to run this are in main floodgap TenFourFox site.
• Can 10.4Fx run on an Intel Mac with 10.4, 10.5 or 10.6?
https://github.com/classilla/tenfourfox/wiki/AAATheFAQ#can-104fx-run-on-an-intel-mac-with-104-105-or-106
Been using these for many years in a first edition MacBook1.1, 1.83GHz; runs Leopard 10.5.8 &
the latest regular build TenFourFox (This is released same time as All; ahead of 'unstable' build.)
~ With main versions; select it from among others. Only 'G3 TenFourFox' runs OK on Intel Mac.
From main site, read for general detail/choose TenFourFox_G3 for 'unsupported' intel Mac:
•TenFourFox: A fork of Mozilla Firefox for the Power Macintosh and Mac OS X Tiger/Leopard PowerPC
http://www.floodgap.com/software/tenfourfox/
This one is the 'present up-to-date' across all versions of TenFourFox ~ other one lags weeks behind.
TenFourFox for G3 processors (latest Feature Parity Release has been on v25 for weeks now.)
Hope this helps set the record straight, to use actual latest build of compatible TenFourFox FPR;
best & affirmed by a month ahead.~ A cautionary is stated in Github above, about unstable one.
While in the official TenFourFox pages, to update MacBook ~ I download 7450 ("G4e") build for G4 Mini.
Good luck & happy trails!🌞🎣