"I think Oregano3 is a total waste of resources. It will never get even close to FireFox's level of compliance with typical sites."
Its a total waste of whose resources? Oregano 3 is just a RISC OS version of Oregan's Media Browser. The vast majority of the resources being used to develop Oregan's Media Browser has nothing at all to do with the RISC OS market. If development on the browser stopped today, the resources freed up wouldn't suddenly start working on RISC OS related products (Such as the RISC OS port of FireFox that you appear to be so fond of).
The only resources that are directly related to RISC OS are the ones provided by Richard Brown at GeneSys Developments Ltd.
Oh and whose definition of a 'typical site' are you using? The ones that are written to the W3 standards? Or perhaps the ones that are written to only work in IE (and then only IE under Windows)? Or perhaps the ones that are just a bunch of flash movies linked together?
"I feel that the money would be better spent on browser-plugin-development and on improving FireFox's integration with RISC OS, its speed, and its quality of display."
There is the slight issue that FireFox doesn't support RISC OS plugins, so any resources directed into plugins would only benefit NetSurf, WebsterXL, Oregano 1 and Fresco. None of which currently "get even close to FireFox's level of compliance with typical sites"
If you want to find some RISC OS related resources to develop FireFox that are currently being used to develop web browsers, then you could try and convinve the NetSurf team to give up all their hard work and switch across to FireFox development.
"As for TTFs, I think it is high time, that the RISC OS font manager was extended to render TTFs and PostScript fonts, in addition to RISC OS fonts."
Well I guess there is nothing stopping you from compiling up an Open Source font manager, adding support for RISC OS fonts, converting it to a module and replacing the existing font manager that RISC OS uses.