Reviews of SmartUpscale

By: Marat Tanalin Add-on

List of user reviews and ratings for SmartUpscale

Total ratings

4.78 (Rating count: 23)

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Review summary

Users consistently praise SmartUpscale for eliminating Firefox’s blurry upscaling on HiDPI/4K screens, delivering crisper nearest‑neighbor scaling helpful for pixel art, icons, webtoons and videos. Many call it essential for 200% or other high-DPI setups. There are no widely repeated complaints across reviews.

Pros

Sharpens low-resolution images on HiDPI/4K displays, fixing blurry upscaling.
Removes Firefox's default blurry/bilinear scaling in favor of crisper (nearest‑neighbor) upscaling — good for pixel art and icons.
Works well at common HiDPI/system zooms (many users mention 200% and improved readability at high DPI).
Improves viewing of webtoons, YouTube and other small graphics by making images appear as true higher-resolution assets.

Cons

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User Reviews

Recent rating average: 4.60

All time rating average: 4.78

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4% (1)

Date	Author	Comment
2025-09-16	ra*****

2025-05-04	Ia*****

2025-03-30	eU*****	It doesn't do anything and They haven't Updated that addon since 2023. :-(
It doesn't do anything and They haven't Updated that addon since 2023. :-(
2025-01-21	za*****

2025-01-20	Fi*****

2024-10-08	IQ*****	Should be preinstalled when installing firefox, just like transparent-standalone-image, and Ublock Origin
Should be preinstalled when installing firefox, just like transparent-standalone-image, and Ublock Origin
2024-02-06	Ha*****

2023-06-19	Ed*****	Essential for any supported browser.
Essential for any supported browser.
2023-05-19	ny*****	Supports fractional screen scale factors properly. When my screen is scaled to 125% (5/4), it properly enables nearest scaling at 160% page zoom (8/5) or pixel scale factor 8/4, rather than 200%.
Supports fractional screen scale factors properly. When my screen is scaled to 125% (5/4), it properly enables nearest scaling at 160% page zoom (8/5) or pixel scale factor 8/4, rather than 200%.
2023-05-13	Fi*****