http://stormwdumgah7rpl6fdj4yhrl2i2a7j3bkzyjcv5qxk3a6253n22thyd.onion/blog/obfs4
It should look something like this: Before you press the Back button to go back to the widget's main window, click on the Security tab and make sure next to TLS cipher the "secp521r1" option is selected, since obfs4 only works with that. When you're done with that, just click the Back button to go to the main window, then connect to whichever server you want to connect to.
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