good
好评，我就是想在这里说句中文

good

No supported PAC script.

Not so trivial first setup. If I want use proxy only for some URL, need setup first proxy and direct connection, then change pattern of direct connection to blacklist URL that I want to be proxyed. Eric, thank you for develop this extension ! Its great !

好用的代理图标切换

UPDATE 2019/09/26:
THIS VERSION IS BROKEN! The "whitelist all URLs" and "blacklist local address" are not working, so "use enabled proxy by patterns & order" doesn't work.
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Very good proxy add-on, but not so powerful as the old version. I really need the customizing click action feature so that I can customize one-click switch on/off function. In this new version I have to click twice to switch on/off.

la rapidez para cambiar de proxys y que te permite almacenar tu usuario y contraseña, pero no te deja escoger el mismo proxy para varios protocolos

It keeps remote host from controlling what I do

Latest version requests permissions to delete browsing data. Why proxy management software would do that?
Please move that function into a dedicated plugin and use only necessary permissions in each.

UPDATE:
I'm not worried about a plugin stealing my data. I just don't want to have a bloated do-it all plugin, that uses permissions it does not need.

I agree, that different contexts when using different proxies may be useful, but that is supposed to be done with https://developer.mozilla.org/en-US/Add-ons/WebExtensions/API/contextualIdentities and not with data deletion. Even then, it's probably a scope of a different dedicated plugin.

I would also like to point out, that if you decide to remove browsing data access later, it will be a removal of a well-used feature (and much more users will come yelling), while now it is an addition of an unnecessary quirk.

To be less negative, let me say it in a different way. I adore the simplicity of previous version, with a little bit of UI polishing it would easily become my favorite plugin. Please don't take that true quality of a dedicated tool from us.