I use
http://stack2rss.stackexchange.com/stackoverflow/users/429540/favorites?body=true
to receive information about stackoverflow updates.
I tried to do the same with
tex.stackexchange.com
and
askubuntu.com
by modifying the url in the obvious way (replacing stackoverflow) but it does not seem to work. Any idea if and, if yes, how I can receive rss updates for these pages?
Your user ID is different on each site:
http://stack2rss.stackexchange.com/tex.stackexchange/users/13403/favorites?body=true
http://stack2rss.stackexchange.com/askubuntu/users/53910/favorites?body=true