diff --git a/extension.json b/extension.json
index 63d8c299c..bfa4de618 100644
--- a/extension.json
+++ b/extension.json
@@ -61,10 +61,6 @@
 			"description": "@var string: Navigation popups gadget name",
 			"value": "Navigation_popups"
 		},
-		"PopupsConflictingRefTooltipsGadgetName": {
-			"description": "@var string: Name of a gadget that would cause duplicate reference preview popups. Known conflicting gadgets include \"ReferenceTooltips\", \"CiteTooltip\" alias \"RefTooltip\", \"ReferencePopups\", and \"tooltipRef\" (see T274353).",
-			"value": "ReferenceTooltips"
-		},
 		"PopupsGateway": {
 			"description": "Which gateway to use for fetching Popups data. Available options: [mwApiPlain|restbasePlain|restbaseHTML]. Full and always up to date list is available in src/gateway/index.js",
 			"value": "mwApiPlain"
diff --git a/includes/PopupsContext.php b/includes/PopupsContext.php
index 9d5abd256..1564368e4 100644
--- a/includes/PopupsContext.php
+++ b/includes/PopupsContext.php
@@ -115,14 +115,6 @@ class PopupsContext {
 		return $this->gadgetsIntegration->conflictsWithNavPopupsGadget( $user );
 	}
 
-	/**
-	 * @param User $user User whose gadgets settings are being checked
-	 * @return bool
-	 */
-	public function conflictsWithRefTooltipsGadget( User $user ) {
-		return $this->gadgetsIntegration->conflictsWithRefTooltipsGadget( $user );
-	}
-
 	/**
 	 * Are Page previews visible on User Preferences Page
 	 *
diff --git a/includes/PopupsGadgetsIntegration.php b/includes/PopupsGadgetsIntegration.php
index 1d4cd01b0..dc7483f87 100644
--- a/includes/PopupsGadgetsIntegration.php
+++ b/includes/PopupsGadgetsIntegration.php
@@ -32,18 +32,11 @@ class PopupsGadgetsIntegration {
 
 	public const CONFIG_NAVIGATION_POPUPS_NAME = 'PopupsConflictingNavPopupsGadgetName';
 
-	public const CONFIG_REFERENCE_TOOLTIPS_NAME = 'PopupsConflictingRefTooltipsGadgetName';
-
 	/**
 	 * @var string
 	 */
 	private $navPopupsGadgetName;
 
-	/**
-	 * @var string
-	 */
-	private $refTooltipsGadgetName;
-
 	private ?GadgetRepo $gadgetRepo;
 
 	/**
@@ -56,8 +49,6 @@ class PopupsGadgetsIntegration {
 	) {
 		$this->navPopupsGadgetName = $this->sanitizeGadgetName(
 			$config->get( self::CONFIG_NAVIGATION_POPUPS_NAME ) );
-		$this->refTooltipsGadgetName = $this->sanitizeGadgetName(
-			$config->get( self::CONFIG_REFERENCE_TOOLTIPS_NAME ) );
 		$this->gadgetRepo = $gadgetRepo;
 	}
 
@@ -90,27 +81,4 @@ class PopupsGadgetsIntegration {
 		}
 		return false;
 	}
-
-	/**
-	 * Check if Popups conflicts with Ref Tooltips Gadget
-	 * If user enabled Ref Tooltip, Popups is unavailable
-	 *
-	 * @param User $user User whose gadget settings are checked
-	 * @return bool
-	 */
-	public function conflictsWithRefTooltipsGadget( User $user ) {
-		if ( $this->gadgetRepo ) {
-			$match = array_search( $this->refTooltipsGadgetName, $this->gadgetRepo->getGadgetIds() );
-			if ( $match !== false ) {
-				try {
-					return $this->gadgetRepo->getGadget( $this->refTooltipsGadgetName )
-						->isEnabled( $user );
-				} catch ( \InvalidArgumentException $e ) {
-					return false;
-				}
-			}
-		}
-		return false;
-	}
-
 }
diff --git a/tests/phpunit/PopupsGadgetsIntegrationTest.php b/tests/phpunit/PopupsGadgetsIntegrationTest.php
index d73f514c3..1d9698b47 100644
--- a/tests/phpunit/PopupsGadgetsIntegrationTest.php
+++ b/tests/phpunit/PopupsGadgetsIntegrationTest.php
@@ -58,7 +58,6 @@ class PopupsGadgetsIntegrationTest extends MediaWikiIntegrationTestCase {
 	private function getConfig( string $name = self::NAV_POPUPS_GADGET_NAME ): Config {
 		return new HashConfig( [
 			PopupsGadgetsIntegration::CONFIG_NAVIGATION_POPUPS_NAME => $name,
-			PopupsGadgetsIntegration::CONFIG_REFERENCE_TOOLTIPS_NAME => $name,
 		] );
 	}