diff --git a/webextensions/api/tabs.json b/webextensions/api/tabs.json
index 336499b7778844..75479eef5212d8 100644
--- a/webextensions/api/tabs.json
+++ b/webextensions/api/tabs.json
@@ -2925,6 +2925,25 @@
                 }
               }
             },
+            "openerTabId": {
+              "__compat": {
+                "support": {
+                  "chrome": {
+                    "version_added": false
+                  },
+                  "edge": "mirror",
+                  "firefox": {
+                    "version_added": "131"
+                  },
+                  "firefox_android": "mirror",
+                  "opera": "mirror",
+                  "safari": {
+                    "version_added": false
+                  },
+                  "safari_ios": "mirror"
+                }
+              }
+            },
             "pinned": {
               "__compat": {
                 "support": {
@@ -3039,7 +3058,8 @@
                 },
                 "edge": "mirror",
                 "firefox": {
-                  "version_added": "61"
+                  "version_added": "61",
+                  "notes": "Support for <code>openTabID</code> in <code>properties</code> added in Firefox 131."
                 },
                 "firefox_android": {
                   "version_added": false
@@ -4080,9 +4100,16 @@
                   "version_added": "18"
                 },
                 "edge": "mirror",
-                "firefox": {
-                  "version_added": "57"
-                },
+                "firefox": [
+                  {
+                    "version_added": "131",
+                    "notes": "Set to -1 to clear <code>openerTabId</code>."
+                  },
+                  {
+                    "version_added": "57",
+                    "version_removed": "131"
+                  }
+                ],
                 "firefox_android": {
                   "version_added": false
                 },