thanks for the direct ftp link, and congrats to the firefox team! i've been using 57 (and 58) via the developer edition and really like the improvements.
but i think i'll stick with 56 as my default browser for a little longer since quantum breaks some great legacy add-ons:
* NoScript -- control script execution
* RequestPolicy (and its variants) -- control content requests
* Blend In -- use the most common user agent string
ublock origin can somewhat replace the first two (although i think its UI could use some improvement) but the latter one and a few more that i use don't have direct equivalents (yet).
NoScript should be released either today/tomorrow or soon. The dev was planning to have it ready for 57, but I don't know how far exactly he got.
It won't be quite full-featured yet, though. He's planning that for Firefox 59, which will be the next Extended Support Release and what Tor Browser will be based on (which needs NoScript).
There's a handful of compatible user-agent switchers already...
I switched from RequestPolicy to uMatrix earlier this year and have found it to be an acceptable substitute. I think my motivation was RequestPolicy being incompatible with multiprocess.
but i think i'll stick with 56 as my default browser for a little longer since quantum breaks some great legacy add-ons:
ublock origin can somewhat replace the first two (although i think its UI could use some improvement) but the latter one and a few more that i use don't have direct equivalents (yet).