Editing my review, around 6 years later, after an ABSOLUTELY DISASTROUS update (v8.2 it seems) that got automatically applied today (this is why auto-updates are bad and I used to disable them all the time - I should have kept this up).
I use multiple separate profiles, each with distinct proxy settings. The update lost the extension settings fully in half of my profiles. In one of them (my main one, mind you), it SILENTLY DISABLED the SOCKS proxy that I had configured via Firefox's settings.
Luckily, I checked my IP that same day for another reason so I was able to detect that without my IP getting leaked for days or weeks or more without me noticing. But this could have been much worse. Totally unacceptable.

---- Old review below:

I used that add-on a bit pre-Fx 57, and it felt quite bloated at the time.

I tried it again after the WebExtension mayhem, and I really like this new version. For my rather simple use case (being able to use and switch between a bunch of SOCKS5 proxies that require username+password), it's quite perfect. I also like that it's easy to import/export settings, so that I can duplicate my config between my several profiles.

As someone else said, it would be nice to be able to disable logging, and apparently that feature is coming soon :)

Них..а вообще не понял что в этом аддоне и куда проксить :(

WAY WAY WAY over-complex. I just want simple SIMPLE management of proxy switching. There were so many great little apps to do this but now the only proxy manager the new versions of FF accepts is this godawful thing. It's completely incomprehensible. I can't get a little quick-switch button on the toolbar. I have a master's degree in computer science and I've been working in IT for over 25 years -- AND I CANNOT MAKE THIS THING WORK. Please give us a stripped-down version that just does simple, straightforward proxy-switching without all the crazy baked in.

Seriously? Permission to download files and change download history? sounds sketchy...

Otherwise I have been using foxyproxy for 5+ years or so and love it, and I understand firefox >= 57 is a big change and it will probably take some time to get thing working as it should again, but i won't use a plugin with those permissions.

This is a giant step back from the wonderful functionality I've come to enjoy as a professional. I realise that this is free software but as it stands right now I am looking for the old version and I will be seeking an alternative.

So much functionality has been lost and a terrifying new GUI put in place, as a professional who relies on the ability to switch proxies I can no longer recommend this to anyone other than a user who has very simple needs.

I can understand that you may need to make progress at some point but really this should've stayed at an Alpha/Beta stage until the majority of features worked.

I wonder how much damage has been done to your reputation for switching this addon in such a state and I really worry for the future of FoxyProxy.

Last update removed my proxies and trying to import an old save export file doesn't work????

In the old version you could choose socks and now not more?
When will you fix this?

This is crazy! All the previous settings are gone, and even worse, the new version does not work at all!! It also has so few options/functions that it is not possible to set up the proxy and patterns as in the old version.

Very annoying and disruptive to lose all my saved proxies and rules on the most recent update

My Proxies are gone. No way to revert and in the new version not all features are available.

From best to worst in a single update.

With no warning, all my proxies are deleted - with one simple behind the scenes and silent update. Now I have to go find my backup, grab the xml, restore the older version, and restore the file. Just what I feel like doing on a Monday morning, at work.

No way to import as the button does nothing.

Working with Firefox, and all its extensions, if just getting too damn difficult anymore.

Разрабы одним махом запоганили замечательное предложение которое исправно работало много лет.
Хотя бы предупредили что будут удалены все прокси. Как их сейчас восстановить? Как?

Not work with squid based proxy, I had to goback to the 4.6 version

From last update nothing works anymore

My main request = force "no proxy" as greyed out in standard Firefox settings (blocked by my company). Does not work any more in 5.0.0 as many features were removed. Sad!

Update after reply from the developer: sadly it doesn't work anymore. With previous versions, I was able to "bypass" the proxy hardcoded in Firefox by my company, and that doesn't work with FoxyProxy v5 as it used to in v4.x. I rolled back to v4.x for now, hoping that this issue will be solved before Firefox v57. Thanks for you reply anyway!