Running version 91 on Win10. Suddenly gmail server not recognizing password, so unable to retrieve or send email messages. Typing in the password manually also fails. Also, cannot find a way to view my current passwords. Online Thunderbird Password documentation does not match what I am seeing. I have no Options under Tools, cannot find a Security item anywhere to allow me to view passwords. How do I regain access to my gmail account from this Win10 machine?

91.3 version running on Win7 on another computer is still working just fine for the same gmail account. I cannot find a way to view my password here either, however. Obviously I would like to be able to compare passwords between the two Thunderbird installations. Thoughts?