diff --git a/chrome/content/zotero/BlockingObserver.jsm b/chrome/content/zotero/BlockingObserver.jsm
index 5789ab9e42..a5c38c9fb1 100644
--- a/chrome/content/zotero/BlockingObserver.jsm
+++ b/chrome/content/zotero/BlockingObserver.jsm
@@ -41,12 +41,6 @@ class BlockingObserver {
 	 * @param {(uri: nsIURI) => boolean} shouldBlock
 	 */
 	constructor({ shouldBlock }) {
-		// TEMP: Disable in CI for now to avoid HTTP request failures
-		// https://github.com/zotero/zotero/issues/3962
-		if (Zotero.automatedTest) {
-			this.shouldBlock = () => false;
-			return;
-		}
 		this.shouldBlock = shouldBlock;
 	}
 
diff --git a/test/tests/HiddenBrowserTest.js b/test/tests/HiddenBrowserTest.js
index fa494a8c97..8e37a2fde4 100644
--- a/test/tests/HiddenBrowserTest.js
+++ b/test/tests/HiddenBrowserTest.js
@@ -43,10 +43,6 @@ describe("HiddenBrowser", function() {
 		});
 		
 		it("should prevent a remote request with blockRemoteResources", async function () {
-			// TEMP: Disable in CI for now to avoid HTTP request failures
-			// https://github.com/zotero/zotero/issues/3962
-			if (Zotero.automatedTest) this.skip();
-			
 			let path = OS.Path.join(getTestDataDirectory().path, 'test-hidden.html');
 			let browser = new HiddenBrowser({ blockRemoteResources: true });
 			await browser.load(path);