Tella.tv Video Downloader

Overview

Tella.tv recordings expire. A product demo from last quarter, an onboarding walkthrough from your manager. Tella is great for making recordings, but there is no guarantee they will be available when you need them again.

This extension creates permanent copies. Press play on any Tella recording, click the download button that appears on the video, and save it as an MP4 file on your computer. It works on Tella's own site and on embedded Tella videos in Notion pages, wikis, or internal docs. If a link goes stale mid-download, the extension automatically refreshes it and picks up where it left off.

Three free downloads are included. The download manager tracks progress across tabs, and everything runs locally in your browser. Your recordings are never uploaded to any outside service.

Why It Exists

• Back up Tella presentations, screen recordings, and demos before links expire or account access changes.
• Save embedded Tella videos from internal portals, wikis, and documentation pages without manual stream extraction.
• Keep final output in standard MP4 format for offline viewing, editing, or compliance archiving.
• Use a Tella-specific workflow that understands signed manifests instead of relying on generic downloaders that fail on expiring URLs.

Key Features

• Detects signed CloudFront HLS manifests from prod-stream.tella.tv once playback begins.
• Works on Tella pages and embedded Tella videos found inside iframes and third-party websites.
• Places an overlay download button directly on detected players so you can start from the video itself.
• Uses multi-pass manifest discovery with frame scanning, HTML checks, and playback warmup for harder embeds.
• Refreshes expired or stale signed URLs by reopening supporting views and reacquiring a fresh manifest.
• Converts signed HLS streams to MP4 in an offscreen context without requiring ffmpeg or desktop software.
• Shows download progress, speed, and task status in the built-in download manager with cross-tab sync.
• Uses the browser Save As dialog so you can choose exactly where the final MP4 should be stored.
• Keeps quality selection tied to the renditions exposed by the Tella manifest instead of forcing a single output.
• Supports Chrome, Edge, Firefox, Brave, Opera, Whale, and Yandex on desktop operating systems.

How It Works

• Install and activate: Add TellaTV Downloader to your browser and complete secure email OTP activation to unlock 3 free downloads.
• Open the Tella video: Visit a Tella page or a third-party site that embeds a Tella player you are authorized to view.
• Press play and choose quality: Start playback so the signed manifest loads, then click the overlay button or popup and choose the rendition you want.
• Save the MP4: Confirm the Save As dialog and let the extension convert the signed stream locally while the download manager tracks progress.

Reviews

• Perfect for backing up Tella recordings (5/5): I use Tella for onboarding walkthroughs and this extension gives me dependable local MP4 backups without any manual stream work. - Clara Whitfield
• Handles embedded Tella videos well (4.9/5): Our team shares Tella videos in Notion and internal docs. This catches the embeds, handles expired links, and keeps the workflow simple. - Marcus Ellison
• Actually works with signed Tella streams (4.8/5): Generic downloaders kept failing on the signed manifests. This one detects the video right after playback starts and the Save As flow is straightforward. - Priya Mehta

Platform Support

Browsers

• Chrome
• Edge
• Firefox
• Brave
• Opera
• Whale
• Yandex

Operating Systems

• Windows
• macOS
• Linux

Supported Content

• Tella.tv video pages
• Embedded Tella videos on third-party websites
• Signed HLS manifests from prod-stream.tella.tv
• Content your session can already view

Not Supported

• Live streams
• DRM-protected or inaccessible content
• Safari and mobile browsers
• Context-menu download workflows

Privacy and Permissions

Supported regions: Worldwide.

Limitations:

• You must press play before the extension can detect the signed HLS manifest.
• Live streams are not supported.
• DRM-protected or inaccessible content is not supported.
• Each download uses the Save As dialog instead of silent auto-save.
• Available quality depends on the renditions exposed by the Tella manifest.
• Safari and mobile browsers are not supported.
• You must already have permission to access and download the content.
• Email OTP sign-in is required to activate the free trial.

Permissions:

• downloads: Handles MP4 saving through the browser Save As flow and keeps the download manager aligned with active progress.
• storage: Stores activation state, trial counters, detected manifest data, and quality preferences locally between sessions.
• activeTab: Detects the current Tella player and injects the overlay button only on the active supported tab.
• tabs: Opens supporting tabs to refresh signed manifests and recover from expired URLs or 403 responses.
• scripting: Scans frames, embedded views, and page content for Tella manifests before starting the correct download workflow.
• offscreen: Runs HLS-to-MP4 conversion in a hidden context so the active tab stays responsive during processing.