for those with a phone: holding the entry will copy it to the clipboard, then just paste it in the window.
Enter username, enter password, do captcha, hit login.
Leave the browser, open the app, see the little timer, if it's about to expire wait a bit, hold the number to copy it.
Go back to the browser, paste, done, you're in, mr hacker.
I'm using the 2FA for almost all of my internet accounts (the ones that support it, others I get an SMS) and this way works great, it's not possible to have >5 fingers and fail at this.