In Brave 0.19.122 for OS X with Metamask 3.13.0 I noticed the extension behaves differently than in Chrome. I’m not suggesting it’s a bug, but wanted to point it out.
What I expected to happen: Consistent with Metamask for Chrome, when I initiate a transaction on MyEtherWallet after having unlocked Metamask, I expect a pop-up window which allows me to approve or decline the transaction.
What actually happened: In Brave the result of initiating a transaction in MEW is different. After I initiate a transaction the Metamask icon is updated to have a number (to indicate that there are transactions waiting for approval, I guess) but no Metamask window opens in the browser frame to prompt me to complete the transaction.
This number is small and easy to miss (especially on very large screen), giving the user (me) the impression nothing is happening. Having the Metamask window open might be a useful prompt for an inexperienced user to complete the transaction.
But thank you SO much for including Metamask in available extensions.