Fill Out PDF on Firefox
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Fill Out PDF on Firefox
Complete PDF forms directly in Firefox
or drag and drop a file
Supports PDF and image file formats (maximum 100MB)
By using the product, you agree to our Terms of Service and have read our Privacy Policy.
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Frequently Asked Questions
Fill Out PDF on Firefox lets you open forms in the browser, type into fields, add extra boxes, and submit without separate software.
It keeps alignment and fonts steady while you finish applications, checklists, or agreements inside Firefox.
Upload PDFs up to about 100MB, fill or edit text, and keep layout intact before downloading.
Yes. Complete interactive fields or place text boxes on scanned forms, then save or share directly from the tab.
Highlight instructions, add comments for collaborators, and strikethrough outdated lines. Firefox privacy controls let you clear files when you finish.