Hi, go to the 3-bar menu > Options > Privacy, and make sure 'Remember search and form history' is selected. Also see: Control whether Firefox automatically fills in forms. And: Firefox doesn't save web form entries

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Seems to save entries but does not insert them into a new website form!

Start Firefox in Safe Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration is causing the problem.

• switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Appearance
• do NOT click the "Refresh Firefox" button on the Safe Mode start window

• https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode
• https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems

Safe Mode also disables Autofill which I then cannot test to see if it fills in forms correctly!

chriswren said

Safe Mode also disables Autofill which I then cannot test to see if it fills in forms correctly!

Are you talking about 'Autofill' - the addon  ?

https://addons.mozilla.org/en-US/firefox/addon/autofill-262804/

In that case :

The developer hasn't updated his add-on since 2013, so you should really contact him and ask him to update (and migrate the add-on to Webextensions)

Can't see how to contact him!

chriswren said

Can't see how to contact him!

Maybe you could try the support site or the support email  ?

The site I found did not have any method to contact!

chriswren said

The site I found did not have any method to contact!

How about the support email link  ?

You could consider switching to 'AutoFill Forms' (WebExtension) :

https://addons.mozilla.org/en-US/firefox/addon/autofill-forms-e10s/