Tell me how to use a proxy with authentication

Works well. Although, I did not install the latest version due to it's need for extended permissions.

Also, it claims to be open source, but where is the source code? Please clearly link to it on the home-page!

Edit: thanks for the speedy answer! So, for others struggling to find the code: un-install the addon, then right-click the "Add to Firefox" to "Save link as", un-zip the .xpi file. (and install again)

Great tool, simple and versatile.

I've used it for years. Cute little thing. Clean, and simple to use. The developer's english ain't too good, but I can put up with that! :)

I like proxyswitch. It's simple and easy to manage. But I wonder why this extension suddenly requires rights to "Access your data for all websites". Can you explain that? Browser plugins can create serious security issues and be a target for people trying to snoop on lots of users...

YEs it is great to have it working again as a webextensions addon, I hope we could get some of the old functionality even if we have to do some workaround or manual text editing (like the testURL setting, and shortcuts ).

Забиваю в конфигуратор одним из пунктов
[ProstoVPN.org
url=https://antizapret.prostovpn.org/proxy.pac
]
При сохранении или проверке получаю выделение серым и зачеркивание названия пункта и ключевое слово "url". Соответственно, этот пункт не появляется и не может быть выбранным в выпадающем списке. Firefox 59.0a1 x64.

If the proxy status is off, it should turn to "on" automatically when a proxy is selected . Instead of turn the status to on manually , so convenient, reduce two mouse click. But just keep the "off" state(use the broswer's setting)-- when not using the proxy.

Excelente, until last week.
Same commentaries than other users. I copy it from other:
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I love this extension for years for its simple and convenient usage at all aspects (GUI, configure syntax, etc), comparing to other similar extensions. However, for the beta version 2017.461 which is migrating to WebExtension technology, is not as convenient as before (the one using XUL).
1. In before if I want to switch off or switch on the proxy, simply clicking the extension button once is enough. Now it requires two clicks - click once to drop down the menu, then click once to select the menu entry of switch on/off.
2. In before, there was a down side triangle which will drop down the candidate proxies for selection once clicked. If I select one pre-defined proxy, the proxy is selected **and switched on automatically**. Now in beta version, selecting proxy and switching on/off are separated operations. I need one more click if switching from proxy-off mode to with-one-proxy mode.
3. the icon/button in the toolbar is not as bright as before when proxy is switched on, that is confusing of whether the proxy is on or off.
In one word, I prefer the old way to interact with MM3 Proxy Switch. I am not sure if current behavior is due to the WebExtension technology. However, if possible, I wan to see my favorite extension can have the same way of interacting with end user as before, which is more convenient, I think.

I love this extension for years for its simple and convenient usage at all aspects (GUI, configure syntax, etc), comparing to other similar extensions. However, for the beta version 2017.461 which is migrating to WebExtension technology, is not as convenient as before (the one using XUL).
1. In before if I want to switch off or switch on the proxy, simply clicking the extension button once is enough. Now it requires two clicks - click once to drop down the menu, then click once to select the menu entry of switch on/off.
2. In before, there was a down side triangle which will drop down the candidate proxies for selection once clicked. If I select one pre-defined proxy, the proxy is selected **and switched on automatically**. Now in beta version, selecting proxy and switching on/off are separated operations. I need one more click if switching from proxy-off mode to with-one-proxy mode.
3. the icon/button in the toolbar is not as bright as before when proxy is switched on, that is confusing of whether the proxy is on or off.
In one word, I prefer the old way to interact with MM3 Proxy Switch. I am not sure if current behavior is due to the WebExtension technology. However, if possible, I wan to see my favorite extension can have the same way of interacting with end user as before, which is more convenient, I think.