Autocomplete doesn't work on any forms
If you find that Firefox will not save any text you enter into forms, follow the instructions below.
Check Firefox settings
Make sure that Firefox is set to remember form entries and that saved form entries are not being automatically cleared:
Click the menu button New Fx Menu and choose Options.
Select the Privacy panel.
Set Firefox will: to Use custom settings for history.
Make sure that Remember search and form history is selected.
Enabling form autocomplete also makes Firefox store search history for the Search bar.
Find Clear history when Firefox closes. If it is selected:
Click on the Settings... button.
Make sure that Form & Search History is not selected.
Click OK.
Close the about:preferences page.
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