Page Source HTML Viewer (works on Android) per ChillaxJustDoIt

Page Source HTML Viewer is a simple, no-nonsense extension designed for developers, students, and curious users who need to inspect the underlying HTML of mobile websites.

Because mobile browsers typically hide the "View Page Source" option, this extension brings that essential desktop feature to your Android device with a mobile-optimized interface.

Key Features:

Instant Source Access: View the full document.documentElement HTML of your active tab with one click.

Mobile Optimized: Large text and responsive layout designed specifically for small touchscreens.

Copy to Clipboard: Quickly copy the entire source code to use in other apps or editors.

Privacy & Safety (Mandatory Disclosure for 2026)

This extension is built with a "Privacy First" philosophy.

No Data Collection: This extension does not collect, store, or transmit any user data, browsing history, or personal information.

Local Processing: All code extraction happens locally on your device.

Permissions: It only requires the activeTab and scripting permissions specifically to read the HTML of the page you are currently viewing.

How to Use:

Navigate to any website.

Open the Firefox menu (three dots ⋮).

Select Add-ons and tap Page Source HTML Viewer.

The source code will appear in a popup. Use the Copy button to save it to your clipboard.