I use Firefox as a browser on all my devices unless I get the rare site that does not like it. I never seem to get a Capcha challenge for the Image Library.
On the rare occasions that I need to use another browser I use Google Chrome.
I virtually never use MS Edge.
Other than deleting cookies and cache I sometimes try turning the internet router off and on again in case of problems because that will give me a different IP address. This would help if the server is logging failed attempts to log in from my allocated IP address.