我估计是那个选项禁用了 Canvas 导出图片的功能, 而 SwitchyOmega 需要这个功能来绘制图标。建议向 Mozilla 反馈，将扩展程序列入白名单。

Try right-clicking on the icon and select "report issue" from the menu. It will open a form with error messages, which would be very helpful to locate the problem. Or, you can select "Save error log" and upload the log there or anywhere you like and then paste the link here.

Firefox itself needs to support SOCKS4A before SwitchyOmega can do anything about it, as SwitchyOmega is only a configuration tool. Right now, only SOCKS4 and SOCKS5 are supported. You can try to see if Tor works with SOCKS4 or SOCKS5 + Remote DNS.

Oops. I'm sorry to hear that. If that happens again, could you please right click on the extension icon and select "Report issues", which would at least capture a stack trace of why that happened? You can also click on "save error log" and attach the error log to the issue report. Please remember to do these things immediately after it happens though, since logs will get cleared on Firefox restart.

感谢反馈！

Please update Firefox Nightly >= 57.0a1 with Build Date >= 2017-09-18 to set up SOCK5 Authentication.

2.5.4 已经支持 SOCKS5 远程 DNS 解析。 (这些功能仅在 Firefox Nightly >= 57.0a1 且编译日期 >= 2017-09-18 时才可以使用。)