OpenComments gives every page a public comment layer. Web Reactions gives supported pages a verified reaction count.
OpenComments is an established adjacent product: its Chrome and Firefox listings describe public comments on any webpage, including recipe notes, product review cross-posting, scam warnings, and fake-news rebuttals.
Web Reactions is not a public annotation wall. It is a focused reaction layer: faster to read, less moderation-heavy, and built around verified aggregate counts rather than free-form public text.
| Web Reactions | OpenComments | |
|---|---|---|
| Primary job | Verified emoji reaction counts | Public comments on any webpage |
| Unit of feedback | One reaction on a supported target | Free-form public comments attached to a page/site |
| Sites covered | Supported-site adapters | Any website, per the store listings |
| Browser listings | Chrome, Firefox, Edge targets planned/built by the project | Chrome and Firefox store listings |
| Data disclosed by store cards | No browsing-history collection; see the policy | Chrome card discloses personally identifiable information |
| Source code | Public on GitHub, GPL-3 | No public repository linked from the store cards reviewed |
| Last public update | Continuous project updates | Chrome: March 20, 2025; Firefox: February 18, 2024 |
Public comments can carry nuance, evidence, and debate. They can also carry noise, spam, harassment, and arguments that have little to do with the page. OpenComments is built for that text-heavy layer.
Web Reactions intentionally stays lighter. A reaction count can be understood in a second, which makes it useful on busy feeds, product pages, and project pages where another comment section would be too much.
Any public comment layer needs policies, abuse handling, ranking, and moderation decisions. Web Reactions still needs abuse resistance, but the content surface is much smaller: a user chooses an emoji reaction for a target.
OpenComments can tell you that public comments exist on a page. Web Reactions is optimized for a different signal: how many verified accounts chose each reaction. The account model is what makes that count worth showing.
OpenComments still has live store cards, but the Firefox card's last update is dated February 2024 and the Chrome card's last update is dated March 2025. Web Reactions is a current project with a public repository and active site support work.
Pick OpenComments if you want to read and post public written comments on arbitrary webpages.
Pick Web Reactions if you want lightweight emoji reaction counts with a verified-account model and open-source client code.
Leaning toward switching? The OpenComments alternative guide covers the move itself.
