In this page we describe some information about Firefox support
MrAddon addons can be used with any browser, but some features needs some browser addons. Download is automatic for Chrome and Firefox.
For direct download, here the link to obtain Firefox addon, as shown in following image.
We can download directly from addons for Cloud version of Atlassian products, for Issue Card Printer and Kanban Combined WIP, as we see in this image. This is an example and we can see Kanban Combined WIP.