Some security features, such as approving sensitive changes, open in a secure pop-up window served by Tide's decentralised network. Your browser needs to allow pop-ups from this site for them to work.
On the app you were using, it's inside the address bar, on the right of the web address.
Select the option to always allow pop-ups from the app you were using, then click Done.
Return to the app you were using and try again. Security pop-ups will now open.
Yes. You're only allowing pop-ups from one site, not the whole web. The pop-up is Tide's secure enclave, where approvals are signed separately from the app.
Reload the app. If you use a separate pop-up blocker extension, allow the site there too.