Firefox Developer Edition is an alpha development version that is supposed to update almost every day.

Firefox Release is the stable version. https://www.mozilla.org/en-US/firefox/all/

muze75 said

I'm using Firefox Developer Edition for its ability to allow my chosen extensions to work. However it updates constantly and I don't want to always be in beta. Is there a way to switch to stable releases or revert to a chosen update and stay there (for a while anyways) ?

There are four main development channels.

Release (currently 51.0.1) < Beta (b#) < Aurora (a2) < Nightly (a1)

Aurora (aka developers edition) and Nightly get checkins almost everyday so they get a update each of those days. Sometimes this can cause issues until fixed, finished or reverted.

Beta channel builds gets say six to twelve builds though 51.0 had fourteen.

See also:

• https://wiki.mozilla.org/Add-ons/Extension_Signing#Unbranded_Builds
• http://www.ghacks.net/2016/07/30/firefox-unbranded-build-downloads/