One possible reason for doing so is that Mozilla would no longer need to spend resources on improving the Firefox PDF viewer.įlash will still be used on sites in 2017 and beyond, and if Mozilla manages to integrate Pepper API as early as in the first half of 2017, it could end NPAPI plugin support at the same time. First, can Mozilla integrate PDFium and Pepper Flash in Firefox in a reasonable time frame? Second, does it make sense to integrate those plugins in Firefox? Firefox ships with its own PDF reader and one possible scenario would be to improve it instead of relying on a third-party implementation.

Project Mortar raises a couple of questions. With that project dead, the organization announced that it would keep Flash NPAPI support enabled in Firefox even after disabling support for all other NPAPI plugins in 2017. Mozilla planned to integrate Shumway, a Flash replacement into Firefox initially but gave up on the project more or less some time ago. The PDFium system add-on that could get released in the future will support more features including form submission, form input, and other options such as copying, selecting or pasting images or text in documents. The most likely scenario is that they are provided as system add-ons that users may turn on or disable.įirefox ships with a basic PDF reader already. It is furthermore not clear right now how these plugins are made available in the release channel. It will be many years before Flash finally undergoes its extremely slow death, and for the time being it's still a good idea to have a working (and up to date) Flash setup going.It is unclear whether work on the implementation began or if it will begin once the PDFium integration reaches feature completion. Try it if you want, but remember I warned you.Īlthough I still prefer HTML5 over Flash, I have to admit that there are still plenty of websites that use Flash. Once that's done, you should be good to go! At time of writing, hardware acceleration still doesn't work, but it could very well be fixed soon. Now, you should be able to use the newer Flash in your favorite browser! If you also have the older Flash installed, it's a good idea to uninstall it or find a way to disable it in your browser.

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