I have used Dashlane for years. All of a sudden no extension icon appears in my browser extensions bar and no option for Dashlane appears when I search for extensions in Firefox. I have Dashlane on my computer but it won't autofill. Manually hunting for passwords is becoming very tiresome. I've gone through every Firefox explanatory page for this problem I could find in Google search to no avail. Can you tell me what's up?