PluginStats
Ad Observer users statistics
Chrome Web Store · Social Networking
A browser extension to share data about your social feed with researchers and journalists to increase transparency.
Ad Observer has approximately 2,000 recorded users on Chrome Web Store, ranking #1845 of 7,072 tracked listings.
Rating: 5.00 / 5 from 7 ratings
About Ad Observer
A browser extension to share data about your social feed with researchers and journalists to increase transparency.
This tool allows you to contribute data about the ads you're shown to further the understanding of researchers, journalists, and the public of online political advertising and how personal data is used to target you with ads.
Ad Observer is offered by the Online Political Transparency Project of New York University. This extension was developed in partnership with the Algorithmic Transparency Institute.
Description from the Chrome Web Store listing.
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Charts
Images: 30d · 1y · all time · 1600×900 dark
Adoption over time
7/30/90-day growth
Ranking history
Ratings over time
Listing placement
Listing placement
Filled points are observed values; hollow points come from Internet Archive snapshots of the listing page. Dashed segments span periods with no observations — values between points are not interpolated.
Each band is one page of 20. Users on a linear scale. Placement is projected from users, so it can differ from the marketplace's own sort order. Hover a dot to see the listing.
Recent observations
Full history (1)Similar Chrome Web Store Social Networking plugins
All 20 Ad Observer alternatives
Data source
Covers every Chrome Web Store extension with at least 100 users, found through the store's public sitemap. User counts are read from public listing pages. The 10% most-used extensions are refreshed daily, the next 40% weekly and the next 40% monthly; the least-used 10% are not refreshed. Google displays rounded user counts (and caps the display at 10,000,000+), so small changes may not be visible. Rating counts above 1,000 are rounded (e.g. 1.6K).
Listing: https://chromewebstore.google.com/detail/ad-observer/dafimblndlbfdhmdnefmmnjdpbbnflgd. First seen Nov 4, 2026; last successful collection Nov 4, 2026. See the methodology.