To solve the problem I had to delete the entire line related to the network that has the problem from the profile preferences file. Which starts with {“blockExplorerUrls”
You need to go into your wallet ( small window) and switch the network to another network using the drop down…say the Cronos Mainnet in your case… then go back into Wallet setting and the three dots will be there for the Binance Testnet… there will be no dots next to Cronos now. It’s basically set up so you can’t delete the Network your wallet is currently on
I have changed the network, restarted the browser and the problem was still there. What I did was delete the network from the preferences file in the profile folder