Create Firebase-Detect.bcheck

[websecnl]

Firebase Technology Detection Script

BCheck Contributions

• [✅] BCheck compiles and executes as expected
• [✅] BCheck contains appropriate metadata (name, version, author, description and appropriate tags)
• [✅] Only .bcheck files have been added or modified
• [✅] BCheck is in the appropriate folder
• [✅] PR contains single or limited number of BChecks (Multiple PRs are preferred)
• [❗] BCheck attempts to minimize false positives

It is prone to false positive, for example: if its a forum or guestbook or something like that and people talk about 'firebaseapp.com' then this will most likely trigger as it would detect it in the response.

I suppose this could be improved to detect firebase keys, instances etc.. so while this works. It can defiantly be improved.

[PortSwiggerWiener]

Many thanks for the submission. It is very much appreciated.

LGTM 👍

[Hannah-PortSwigger]

Looks good!