Regarding what you have mentioned about the search engines not being a freedom issue but not being either desirable, you can probably a similar situation in this thread: https://lists.nongnu.org/archive/html/gnu-linux-libre/2017-12/msg00015.html that was raised by bill-auger to GNU-linux-libre from trisquel-devel. We are still waiting for the answer by the FSF. If their answer is that it is compliant with FSDG, without a lot of modifications, probably that functionality in Abrowser also is and Icecat is available for everybody concerning about those issues.
Probably the reason why Iceweasel is not present in Trisquel is the one
mentioned by MagicBanana, but probably you can find more information about it
at the end of this page: https://trisquel.info/en/wiki/abrowser-help
- [Trisquel-users] Default web browser, Abrowser, in Trisq... svenerik_vn
- Re: [Trisquel-users] Default web browser, Abrowser,... masonhock
- Re: [Trisquel-users] Default web browser, Abrow... svenerik_vn
- Re: [Trisquel-users] Default web browser, Abrow... David Philipe Gil
- Re: [Trisquel-users] Default web browser, Abrow... fbits
- [Trisquel-users] Re : Default web browser, ... lcerf
- Re: [Trisquel-users] Default web browser, A... ablocorrea
- Re: [Trisquel-users] Default web browser, Abrowser,... shiretoko