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Preview of Tab Network Monitor

Tab Network Monitor by Jemi

Shows live estimated network usage per Firefox tab.

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About this extension
Tab Network Monitor provides a real-time overview of network usage per browser tab directly from a compact popup.

Instantly see which tabs are consuming bandwidth, with live speed (KB/s, MB/s), total transferred data, and request counts. Tabs are automatically sorted by current network usage, making it easy to identify heavy pages such as video streams or downloads.

Each tab includes a small live graph showing recent network activity, giving you a quick visual understanding of spikes and trends over time.
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Permissions and data

Required permissions:

  • Access browser tabs

Optional permissions:

  • Access your data for all websites

Data collection:

  • The developer says this extension doesn't require data collection.
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More information
Version
0.5.0
Size
17.7 KB
Last updated
3 days ago (May 5, 2026)
Version History
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