Mozilla (the people behind Firefox) are always testing new features and tools. One of the newest they are testing is an interesting tool named Send. With this you can send files up to 1GB in size that will self-destruct and can be done so using any modern browser not just

The best content blocker Chrome add-on is now also available for Firefox users. An efficient blocker: easy on memory and CPU footprint, and yet can load and enforce thousands more filters than other popular blockers out there.

As Mozilla plans to cut off legacy support from version 57 all add-ons