How to Install LockDown Browser from Blackboard on Mac (Original + Ultra)

Last updated 2026-05-02 · LDBypass Editorial

Blackboard Learn surfaces the LDB download in different places depending on whether your institution uses the Original or Ultra interface. Original interface has it in the Tests panel of the course; Ultra surfaces it in the assessment overlay. Below: both paths plus the macOS install.

Step-by-step path on Blackboard Learn

Sign in to your Blackboard instance (typically [your-school].blackboard.com or blackboard.[your-school].edu).
Click the course tile.
Original interface: Course menu (left sidebar) → "Tests, Surveys and Pools" → click the specific test → "Begin" or "Take Test"; the LDB download link appears in the launch dialog.
Ultra interface: Course Content → click the assessment → "Open Assessment" overlay opens; the LDB download link appears in the overlay.
Click "Download LockDown Browser". Browser downloads the .dmg.
Proceed with the standard macOS install steps.

If the download link is missing

If your Blackboard Learn course doesn't show the LDB download link where this guide says it should be, the most likely causes:

Your instructor hasn't enabled LDB for that specific assessment yet.
The assessment is in test/draft mode, not published.
Your enrollment in the course hasn't fully synced (try signing out and back into the LMS).
Blackboard Learn is in maintenance window (rare).

Email your instructor with: the course name, the specific assessment, and a screenshot of what you see. They can fix the configuration server-side or send you the link directly.

After download - install on macOS

Open Finder → Downloads. Double-click the .dmg.
macOS verifies the notarisation. ~2-5 seconds.
The .dmg mounts. Double-click the installer package.
Authenticate with admin password (Sonoma 14.4+ requires this).
Installer runs ~10-30 seconds. LockDown Browser.app appears in /Applications.
Eject the .dmg from Finder.
Return to Blackboard Learn, click "Launch LockDown Browser" on the assessment.
macOS prompts: "Open LockDown Browser?" → Open.
Approve Camera + Microphone + Screen Recording TCC dialogs.
The exam begins.

Upgrade path (if LDB is already installed)

If you already have LDB installed from a previous course, you may not need to reinstall. Launch your existing LDB; it auto-checks for updates. Confirm the version matches your university's required minimum (right-click LDB.app → Get Info).

If your installed LDB is older than the Dashboard requires, you'll see error -111 at launch. Reinstall from your Blackboard Learn link to get the current build.

Frequently asked questions

How do I tell if my institution uses Blackboard Original or Ultra?

Original has a left sidebar with "Course Content / Discussions / My Grades / etc."; Ultra has a tile-based dashboard with rounded corners and a different navigation. Either way, LDB integrates with both.

My Blackboard course shows the test but no Download LockDown Browser link.

Your instructor hasn't enabled LDB for that specific assessment, or the assessment is in unpublished/draft state. Email your instructor.

Can I install LDB from the Respondus website directly?

No - the public Respondus download is institution-specific via Dashboard configuration. A generic LDB from respondus.com (if you find one) wouldn't bind to your institution's Dashboard and would fail at exam launch.