Offline when Minimized

Offline when Minimized

Blocks all connections when the browser window is minimized. The connection request is blocked if it's in a tab where its parent window is minimized.

What is Offline when Minimized?
Offline when Minimized is a Firefox add-on that blocks all connections when the browser window is minimized. It prevents tabs in a minimized window from transferring any data over the net, saving computer resources and providing peace of mind.
Merlin
Stats
By: matroshka
Users: 14 ▼ -1
Rating: 5.00 (2)
Version: 0.8.1 (Last updated: 2019-10-07)
Creation date: 2019-10-06
Weekly download count: 3
Firefox on Android: No
Risk impact: High risk impact
Risk likelihood: Low risk likelihood
Manifest version: 2
Permissions:
  • *://*/*
  • webRequest
  • webRequestBlocking
Size: 8.58K
Stats date:

Other platforms

Not available on Chrome
Not available on Edge
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Merlin
Summary

Get the peace of mind that your open pages/tabs are not accessing the internet while their window is minimized. This saves some of the computer resources. Firefox automatically reduces the javascript timer frequency when the tab is in the background, but does not prevent it from accessing the network. With this add-on you get the added benefit that a tab in a minimized window is unable to transfer any data over the net.

Notes:

  • This add-on does not terminate connections that are already established when the window is minimized. It just prevents new ones.
  • For a more radical solution, try the add-on "Auto Tab Discard" by Richard Neomy, which totally pauses the processing in background tabs.
User reviews
by A FF User, 2020-09-12

Holy shut! It works! Easy to check: go to YouTube, click a random video that you haven't seen before (aka. not in cache) and immediately minimize Firefox. YouTube has no time to preload, and never runs the video (you wont hear the audio). @matroshka : Could you please make an option to minimize to tray (or/and very least to bar) when the [X] Exit icon is clicked on Firefox? Thank you!
by Marco Antonio, 2020-05-10
View all user reviews
Safety
Risk impact

Offline when Minimized is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this add-on. Review carefully before installing. We recommend that you only install Offline when Minimized if you trust the publisher.

Risk likelihood

Offline when Minimized has earned a fairly good reputation and likely can be trusted.

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