Reviews of Save-Data: on

By: Aleksandersen Add-on

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

Total ratings

4.23 (Rating count: 31)

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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: 3.60

All time rating average: 4.23

Upgrade to see all 31 reviews

10% (3)

Date	Author	Comment
2026-07-10	ss*****	Installation aborted because the add-on appears to be corrupt.
Installation aborted because the add-on appears to be corrupt.
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.
2023-10-24	ut*****

2023-04-21	no*****

2023-02-03	wi*****	I'm not sure about this add-on, It sounds usefull.... but it should add feature such as comparation "save data & without save data" in Mb and total saving data in days/weeks/months. But the most important is all features should not make Firefox consumes big RAM.
I'm not sure about this add-on, It sounds usefull.... but it should add feature such as comparation "save data & without save data" in Mb and total saving data in days/weeks/months. But the most important is all features should not make Firefox consumes big RAM.
2021-06-09	Mi*****

2021-04-11	Da*****

2021-03-22	Fi*****	This plugin is more of a protest than a functional data saver.
This plugin is more of a protest than a functional data saver.