I tested Konqueror browser with Pinephone Keyboard.

easy install:
sudo apt-get install konqueror

Quite good browser, I could open all pages so far, except some pages that has pull down menu (page goes black after choose), but you can continue browsing choosing from file menu "open with firefox".

Compared to Firefox 102 ESR:
- faster
- clever tabs, if only one tab then doesn't show tab line
- ctrl+shift+f to get almost fullscreen to get more room for page

It should work with Droid4 too.

This version would be too much for N900 memory, but it has more than just browser so maybe after lightweigting it can fit. Or what happened to Konqueror embedded version?:
http://web.archive.org/web/201011241...index.pl/konqe