If you are having trouble connecting a browser wallet (ie Metamask,CTRL,Keplr,etc.), make sure to disable any other wallets you have installed. To do this, click “Extensions” and then “Manage extensions”.
Example: You want to connect CTRL but also have Metamask and Rabby installed.
Pro tip: After disabling the other wallets you are not currently trying to connect, be sure to refresh app.thorswap.finance before trying again.