One challenge i have right now with Firefox's experimental sidebar is that When you open a second window on a dual screen you can potentially delete your side bar. Next time I login its like its completely gone. If i drag a new screen or open a tab outside of that environment with a dual screen environment. Would love some type of enhancement for the sidebar to allow for being able to load sidebar and not losing it every time you are in a different scenario. Also across Different devices wish it was able to share the experience and I didn't need to recreate any changes i make to a side bar. Re pinning everything is a struggle.
This is something arc did really well. Zen which is built on Firefox is another thing i like but I was trying to stick to Native Firefox.
