Please upgrade for compatibility with Developer Edition

[sergiobello]

It doesn't work no more in Firefox Developer Edition

https://support.mozilla.org/en-US/kb/firefox-add-technology-modernizing?as=u&utm_source=inproduct

[NobleUplift]

Oh no. I just reinstalled this addon and that means that it won't work in four days when Firefox 58 is released.

[tommut]

Sorry! Unfortunately I have not had the time to rewrite the addon from scratch using the new FF web framework. Starting with FF 57 release when the legacy addons are disabled, I'm afraid you'll have to find another non-legacy addon to make HTTP requests from within firefox.
'Rester' is one that I see on a quick look: https://addons.mozilla.org/en-US/firefox/addon/rester/

[TechJA]

Hi @tommut ,
your addon it's a must for firefox user's.
Please don't abandon your great addon