Cannot manage account without installing the extension.
Cannot delete a pre-existing account without paying for a plan.

Edit: After talking to support, you CAN delete your account without a plan. But, you need to go directly to the account deletion page (I would link, but cannot include links in add-on reviews). Also, you must have the extension installed to access the account deletion page, you do not need to be logged in, just have the extension installed.

Used for 10 yrs or so. Never a problem.

Please let me change or at least delete my account. It prompts me to enter my Master Password when I have forgotten it. Last time I used this extension was 4-5 years ago.

Worst updates ever