Tradyr Firefox

Tradyr

Dynasty fantasy football values everywhere. Composite KTC + FantasyCalc badges next to player names on Sleeper, KTC, FantasyCalc, ESPN, Yahoo, FantasyPros, X, and 15+ news sites. Live trade totals on Sleeper trade pages. No tracking.

Features & Capabilities

Tradyr puts dynasty fantasy football values everywhere you already research players — no more flipping between tabs.

A small, colour-coded badge appears next to player names showing the Tradyr Composite: a blended score from KeepTradeCut and FantasyCalc that gives you one number to trust at a glance. Click any badge to open the full player profile on tradyr.app — historical value chart, rest-of-season projection, advanced stats and metrics.

WHERE IT WORKS • Sleeper — rosters, trade builder, league pages (with a live trade-totals overlay that scores both sides as you build) • KeepTradeCut — rankings, player pages, trade calculator • FantasyCalc — rankings and trade tool • FantasyPros, Yahoo Fantasy, ESPN Fantasy, MyFantasyLeague, Fleaflicker • X / Twitter — adds a value row under any tweet that mentions players • News & analysis: NFL.com, DynastyLeagueFootball, PFF, RotoWire, RotoBaller, NumberFire, CBS Sports, Yahoo Sports, The Fantasy Footballers, Draft Sharks, Pro Football Reference, NBC Sports, The Athletic, Reddit, ESPN.com

WHAT IT SHOWS • Composite value (KTC + FantasyCalc, position-normalised) • Position pill (QB / RB / WR / TE / Pick) with consistent colours • Confidence score and overall rank on hover • Bye week beside each badge during the season • Live trade totals on Sleeper trade pages, sums each side, shows the delta, calls out the winner

PRIVACY Tradyr does not collect any personal data. The extension reads visible player names on the pages you visit and asks api.tradyr.app for matching values. No browsing history, no account info, no analytics inside the extension. Full policy: https://tradyr.app/privacy

Free. No login. No ads. No tracking.

User Growth & Download Statistics

Manifest V3 Add-on
By:
El Cap Studios
Daily users:
3
Version:
0.5.8 Last updated: 2026-04-30
Version code:
6236923
Creation date:
2026-04-27
Risk:
Very high risk impact High risk likelihood
Permissions:
Host permissions:
  • https://api.tradyr.app/*
Content scripts matches:
  • sleeper.com
  • *.sleeper.com
  • keeptradecut.com
  • *.keeptradecut.com
  • fantasycalc.com
  • *.fantasycalc.com
  • www.fantasypros.com
  • *.fleaflicker.com
  • football.fantasysports.yahoo.com
  • fantasy.espn.com
  • See more
Size:
30.65KB
Email:
su*****@tradyr.app
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-06-15
Compare stats and ranking:

Ranking

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
El Cap Studios
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/tradyr/
Email:
su*****@tradyr.app
Website:
https://www.tradyr.app

Is Tradyr Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Tradyr requires a lot of sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Request access to the following domains: sleeper.com, keeptradecut.com, fantasycalc.com, fantasypros.com, fleaflicker.com, yahoo.com, espn.com, myfantasyleague.com, twitter.com, x.com, nfl.com, dynastyleaguefootball.com, footballguys.com, pff.com, rotowire.com, rotoballer.com, numberfire.com, cbssports.com, thefantasyfootballers.com, draftsharks.com, pro-football-reference.com, nbcsports.com, theathletic.com, reddit.com, tradyr.app
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Tradyr is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Medium **** ********* *** ******* ** *** **** * ******* *** ******* *** *** ** ****** ** *****
  • Medium **** ********* *** ***** ** *** **** * ******* *** ********** *** *** ** ****** ** *****
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