diff --git a/toolkit/components/extensions/ExtensionDNR.sys.mjs b/toolkit/components/extensions/ExtensionDNR.sys.mjs
index 7acc73e1543e..e42462cbd30d 100644
--- a/toolkit/components/extensions/ExtensionDNR.sys.mjs
+++ b/toolkit/components/extensions/ExtensionDNR.sys.mjs
@@ -744,9 +744,10 @@ class ModifyResponseHeaders extends ModifyHeadersBase {
 }
 
 class RuleValidator {
-  constructor(alreadyValidatedRules) {
+  constructor(alreadyValidatedRules, { isSessionRuleset = false } = {}) {
     this.rulesMap = new Map(alreadyValidatedRules.map(r => [r.id, r]));
     this.failures = [];
+    this.isSessionRuleset = isSessionRuleset;
   }
 
   removeRuleIds(ruleIds) {
@@ -845,6 +846,15 @@ class RuleValidator {
   // Checks: tabIds & excludedTabIds
   #checkCondTabIds(rule) {
     const { tabIds, excludedTabIds } = rule.condition;
+
+    if ((tabIds || excludedTabIds) && !this.isSessionRuleset) {
+      this.#collectInvalidRule(
+        rule,
+        "tabIds and excludedTabIds can only be specified in session rules"
+      );
+      return false;
+    }
+
     if (this.#hasOverlap(tabIds, excludedTabIds)) {
       this.#collectInvalidRule(
         rule,
diff --git a/toolkit/components/extensions/parent/ext-declarativeNetRequest.js b/toolkit/components/extensions/parent/ext-declarativeNetRequest.js
index 71d9ba8cdb27..914566cf7843 100644
--- a/toolkit/components/extensions/parent/ext-declarativeNetRequest.js
+++ b/toolkit/components/extensions/parent/ext-declarativeNetRequest.js
@@ -31,7 +31,8 @@ this.declarativeNetRequest = class extends ExtensionAPI {
         updateSessionRules({ removeRuleIds, addRules }) {
           const ruleManager = ExtensionDNR.getRuleManager(extension);
           let ruleValidator = new ExtensionDNR.RuleValidator(
-            ruleManager.getSessionRules()
+            ruleManager.getSessionRules(),
+            { isSessionRuleset: true }
           );
           if (removeRuleIds) {
             ruleValidator.removeRuleIds(removeRuleIds);
diff --git a/toolkit/components/extensions/test/xpcshell/test_ext_dnr_static_rules.js b/toolkit/components/extensions/test/xpcshell/test_ext_dnr_static_rules.js
index 569362961d5a..40e05e28041d 100644
--- a/toolkit/components/extensions/test/xpcshell/test_ext_dnr_static_rules.js
+++ b/toolkit/components/extensions/test/xpcshell/test_ext_dnr_static_rules.js
@@ -1276,3 +1276,77 @@ add_task(async function test_static_rulesets_limits() {
 
   await extension.unload();
 });
+
+add_task(async function test_tabId_conditions_invalid_in_static_rules() {
+  const ruleset1_with_tabId_condition = [
+    getDNRRule({ id: 1, condition: { tabIds: [1] } }),
+    getDNRRule({ id: 3, condition: { urlFilter: "valid-ruleset1-rule" } }),
+  ];
+
+  const ruleset2_with_excludeTabId_condition = [
+    getDNRRule({ id: 2, condition: { excludedTabIds: [1] } }),
+    getDNRRule({ id: 3, condition: { urlFilter: "valid-ruleset2-rule" } }),
+  ];
+
+  const rule_resources = [
+    {
+      id: "ruleset1_with_tabId_condition",
+      enabled: true,
+      path: "ruleset1.json",
+    },
+    {
+      id: "ruleset2_with_excludeTabId_condition",
+      enabled: true,
+      path: "ruleset2.json",
+    },
+  ];
+
+  const files = {
+    "ruleset1.json": JSON.stringify(ruleset1_with_tabId_condition),
+    "ruleset2.json": JSON.stringify(ruleset2_with_excludeTabId_condition),
+  };
+
+  const extension = ExtensionTestUtils.loadExtension(
+    getDNRExtension({
+      id: "tabId-invalid-in-session-rules@mochitest",
+      rule_resources,
+      files,
+    })
+  );
+
+  const { messages } = await AddonTestUtils.promiseConsoleOutput(async () => {
+    ExtensionTestUtils.failOnSchemaWarnings(false);
+    await extension.startup();
+    ExtensionTestUtils.failOnSchemaWarnings(true);
+    await extension.awaitMessage("bgpage:ready");
+    await assertDNRGetEnabledRulesets(extension, [
+      "ruleset1_with_tabId_condition",
+      "ruleset2_with_excludeTabId_condition",
+    ]);
+  });
+
+  AddonTestUtils.checkMessages(messages, {
+    expected: [
+      {
+        message: /ruleset1.json: tabIds and excludedTabIds can only be specified in session rules/,
+      },
+      {
+        message: /ruleset2.json: tabIds and excludedTabIds can only be specified in session rules/,
+      },
+    ],
+  });
+
+  info("Expect the invalid rule to not be enabled");
+  const dnrStore = ExtensionDNRStore._getStoreForTesting();
+  // Expect the two valid rules to have been loaded as expected.
+  await assertDNRStoreData(dnrStore, extension, {
+    ruleset1_with_tabId_condition: getSchemaNormalizedRules(extension, [
+      ruleset1_with_tabId_condition[1],
+    ]),
+    ruleset2_with_excludeTabId_condition: getSchemaNormalizedRules(extension, [
+      ruleset2_with_excludeTabId_condition[1],
+    ]),
+  });
+
+  await extension.unload();
+});