99% of the 1 star reviews are from pissy mens rights activists who are upset they or their fellow transmisogynistic friends got marked red. It is a good extension for sniffing out transphobia, specifically, transmisogyny. To anyone on the fence, please disregard the reviews from bigots.
and yes it's even accurate on tumblr. if you're mad about it on tumblr you are part of the problem and you need to fix your heart because whining "WHAT ABOUT MEN" in response to trans women talking about their very specific kind of oppression that those of us TME people do not experience is literally transmisogynistic as all hell.

this add-on is actually rlly reliable if you fully comprehend *why* the people who are marked red/green are marked red/green. it's not about whether or not you're "nice" or are "normal," it's about whether or not you're safe for trans people to be around; specifically, *transfeminine* people, as they are the most vulnerable members of the trans community, and anyone who isn't safe for them shouldn't be considered "trans friendly." that's really all there is to it. useful extension!!! although i agree with people who say it would be nice to know why certain people were marked red/green, the context would be useful too

Used to be good until the bis came in

useful for news websites or social media users, completely useless for tumblr. normal people are often marked red while extremely aggressive people are sometimes marked green. discourse stances shouldnt be a measure on minority discrimination.

the 1-star reviews complaining about transmasc and intersex people getting marked red fail to consider WHY they get marked red (hating trans women)

lots of false flags, intersex people and trans men are almost always marked red while transmisandrists are marked green

used to use this religiously after it first came out and at first it was genuinely useful. now after discovering i'm intersex i try to go to any community for the topic anywhere and everyone is marked red because our discussions of gender and sex don't 100% align with the mods views (which then gets called transmisogynist, when nobody is saying anything of the sort at all). this includes a disproportionate number of transfems, so the claims that simply being transfem will get you marked green are false. i have, however, seen people get marked within days of making an account somewhere *just because they are posting in intersex spaces*. so do with that information what you will. i personally never plan on using the extension again, i'll vet people myself

Abysmal tool if you genuinely care about safety from transphobes. There is a mountain of examples where people who spew intersexist, exorsexist and antitransmasculine hatred 24/7 get to secure their "safe" marking while painting their trans siblings who won't stand for that as the real transphobes.

The Wikipedia page for gloves is marked green but only in spanish and asturian, this thing has no moderation whatsoever

It also says a lot that most of the recent 5 stars reviews are "you're just mad you're transmisogynistic and got flagged red LOL!" but never address the racism and the transphobes being flagged green complaints that they're responding to

I've also just noticed that the website got updated since when I first installed this addon and lists "theyfab" as a "community infighting" term when I've only ever heard it being said by TERFs. It's an enbyphobic slur and it's clearly transphobic

This extension- as many others have already pointed out- is no longer accurate or curated in any shape or form. I've used it for many years now, and I just keep catching false flags, especially on tumblr. Not worth the download in 2026

I wish there was a way to see why someone is marked as pro or anti trans. Like a quick description "Posts hateful comments on twitter" or "Regularly Advocates for trans rights during live streams"

While at times very good, the community-sourced data on tumblr is prone to bad information from TERFs, false flags from petty infighting, and racism. Often, a trans-friendly and specifically transfeminine blog will be removed by community flagging for having affiliated with any other blog that does not subscribe to specifically radical transfeminist theory. The review process simply cannot keep up with the type of flagging system it has. I also still have concerns over how in the past, attempts to flag exorsexist and otherwise 'truscum' blogs were thrown out, and concerns about exorsexism as a form of transphobia were dismissed for potentially muddying the water in flagging transmisogynists. I'd honestly rate this app at a 3 were it not for its claims of being concerned with transphobia or anti-LGBTQ+ sentiments as a whole, when many reviewers and users will tell you that the extension was always only intended to report transmisogyny.

Despite what other reviews will say there's very few false positives or false negatives if you're a regular person engaging in regular circles.

It won't be a problem unless you engage in chronically online discourse, in which case you can easily use your critical thinking skills to determine for yourself whose on your side and change them to green for yourself.

on a lot of websites it seems fine, but its completely useless for tumblr. anyone supporting trans men gets marked red.
I don't know why other reviewers are saying this is false, I guess they don't use tumblr?