Opening all bookmarks with a given tag at once in Firefox -

i'd open tagged bookmarks in firefox @ once.

example use case: have few sites regex tools bookmarked , when need write regex, open each 1 before start working. each of these sites firefox bookmark , tagged "regex". able type "regex" somewhere (search bar? address bar?) , have option click "open tabs tagged "regex".

is there way this? there maybe add-on that? otherwise, if have tips, write extension.

if have same problem, please let me know features in comments question , i'll try implement them if go route.

trying answer part want pointers create extension this, best place start should here.

if don't want go route, can search tag want, select , "open in tags"