Sure, shmu!
But for reduce risks, I chose rather only from developers who are still very much alive, who have trustworthy websites.
Eg developer of this add-on above, Andras Horvath, it has the trustworthy website, I posted the link too, here too:
user info:
User Info for Andras Horvath :: Add-ons for Firefox
- and
homepage of developer: on frontfoo.com:
frontfoo.com
He is personally interested in developing the code, this can be seen clearly from the posting on his homepage: his proposal is on the "web app development with STANDARD HTML, CSS AND JAVASCRIPT to access and manipulate data without the knowledge and hassle of the underlying full layers of backend programming and server maintenance".... In addition he has a face too trustworthy, the glasses also visibly are of good quality... so... so... he is Hungarian, I like Hungarians!
I hope you have nothing against Hungarians and their add-ons? Which are offered to us for free...
Shmu, if you have seen an extension that I've posted, that you don't consider trustworthy, quickly give us the sign, so that we can also judge again...
Because first - I tried all the extensions/add-ons I posted the links, I have pure conscience.