Adam MasseyThis primarily affects PDFs of book chapters scanned in by the library, but some courses will use Equella for other types of content. Both Google Chrome and Mozilla Firefox are blocking access to content stored on Equella
Links from Blackboard to Equella are represented by this icon
Google Chrome
Click the shield icon 
which appears to the right of your address bar, then click Load unsafe script
There’s more information on Google Chrome’s support site.
Mozilla Firefox
Click the shield icon 
which appears to the left of your address bar. Click Options, then click Disable protection for now
There’s more information on Mozilla’s support site.