Is there a possibility to disable Firefox getUserNameAndPasswordFields

Question

I have a website with a lot of HTML elements. The website is very slowly in Firefox at the first click to an input element, because the getUserNameAndPasswordFields in LoginManagerChild.jsm is called about 28.000 times is ~60s. (recorded with the Firefox runtime analysis). In Chrome the side loads very fast.

Is there a possibility to disable the getUserNameAndPasswordFields function?

Answer 1

I have now removed all forms from the site, so no check will be performed. Previously all input fields was checked, also outside of the form.