Save-Data: on Firefox

Reviews of Save-Data: on

List of user reviews and ratings for Save-Data: on

Total ratings

4.33 (Rating count: 30)
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Review summary

Users generally report the add-on is simple, reliable, and improves streaming/speed on low-end devices. It helps manage data usage by signaling sites to reduce data. However, users want an exclude/whitelist to prevent site breakage, question its overall data-saving effectiveness, and request a UI toggle to enable/disable the extension more easily.
Pros
  • Notable improvement in streaming and overall speed on low-spec hardware.
  • Simple and effective to use.
  • Stable and reliable in practice; extension works well for many users.
  • Helps reduce data usage by signaling sites to optimize (Save-Data header).
  • Beneficial for limited data scenarios like satellite Internet.
Cons
  • Lacks an exclude/whitelist feature to prevent site breakage; need a manual list of excluded sites.
  • Perceived limited effectiveness since it doesn't directly reduce data usage, it mainly signals sites to optimize.
  • No built-in on/off toggle in Firefox; some users would prefer easy enable/disable and rely on the extension because Firefox lacks a corresponding setting.
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User Reviews

Recent rating average: 3.70
All time rating average: 4.33
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5 star
70% (21)
4 star
13% (4)
3 star
3% (1)
2 star
7% (2)
1 star
7% (2)
DateAuthorRatingComment
2026-01-14 Oc***** The plugin should have a manual list of websites/domains that are excluded from adding the Save-Data header, as it can sometimes cause certain websites/domains to malfunction; I've encountered this.
The plugin should have a manual list of websites/domains that are excluded from adding the Save-Data header, as it can sometimes cause certain websites/domains to malfunction; I've encountered this.
2025-08-24 Fi***** Notice a real improvement in audio & video streaming on my low spec bay trail 2in1, and my ancient macbook osx lion Just 2gb of ram.
Notice a real improvement in audio & video streaming on my low spec bay trail 2in1, and my ancient macbook osx lion Just 2gb of ram.
2024-05-13 Lu***** Simple and effective.
Simple and effective.
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