In almost all browsers, when you open a new window, pinned tabs are not carried over. I understand that maybe this is useful to some people, but to others (such as me), that behaviour is a bit odd.
My suggestion is to have an option (maybe in Appearance or Browsing) to choose which behaviour you prefer.
TheOtherKai Note that a pinned tab in multiple windows does not take any extra resources.
Vlad They still take up space. I prefer the behavior of Firefox and Chrome with pinned tabs. Before I moved to Safari, I used pinned tabs all the time. Having them show up in every window is not helpful for me. I effectively gave up pinned tabs in my move to Safari.
Some context: I'm a developer. I have three screens and make use of Spaces. Typically, I have 7+ browser windows open at a time. Each browser window/screen/space represents a different context (email, communication, primary project, secondary project, research/documentation, scratch pad, entertainment/distraction, etc). I used to have pinned tabs in the browser windows of each of these contexts. With Orion/Safari, this would mean every window could have up to 10 pinned tabs, most unrelated to each other. If I'm in a specific context, I know what each pinned tab means. However, if the pinned tabs show in every window I have to think a lot more about which pinned tab I need. Suddenly this feature just causes more mental work than without it.
Vlad It would work just as it does in Chrome and Firefox. A pinned tab only lives in the window it was made in. I think both ways of working should be maintained, Safari-style and every-other-major-browser-style. The Safari-style is probably a good default for non-power users.
How would your proposal work? It seems that if pinned tab where per window, when I close the window I lost all pinned tabs too and would need to recreate them.
That's actually desired behavior for me. I keep browser windows open for a long time. I'll be working on a project for months. Keeping the relevant browser windows (documentation, research, test pages, etc) open makes sense for me and that's what I do. I don't want the pinned tabs to live beyond the window they were created in. That would just be frustrating.
It's pretty clear these are two very different but both valid ways of using pinned tabs. Why not support both ways?
I would love to see this as an option. I also to give up pinned tabs for now since switching to Orion.
My preference would be to have different pinned tabs in different windows, so I support this request.
If it's easier, just don't make this the default behavior. I have multiple windows open at all times.
I don't want my pinned tabs in every window.
Need a specification
Option name and placement and thinking through edge cases
what if you have different pinned tabs in different windows and then turn on mirroring. and vice versa.
This is one of the behaviors of Safari that I have always disliked as compared to almost all other browsers. I have never used pinned tabs in Safari (and now Orion) because of this.
As far as a suggested option name and placement, my suggestion would be "Pin tabs to all windows" or conversely "Pin tabs to current window only" as the label and append it to the "Tabs:" options within "Appearance".
To me, when "Pin tabs to current window only" is enabled, pinned tabs behave exactly like non-pinned tabs but displayed to the left/top of non-pinned tabs with just the icon as they do now. As far as my personal expectation, there's nothing more specific to it. Different pinned tabs in different windows would behave exactly like different non-pinned tabs in different windows. Perhaps I misunderstand the issue/question.
danderson Thanks for clarifying. I personally love the default behavior and assume many users coming from Safari do too.
It is non trivial to have two behaviours and the main challenge for us is there are many features like this, so Orion ends up doing double the work. No other browser has the option to control how are tabs pinned for example, but it is expected from a browser built by a small team to have it 
We love how pasionate our users are but I want to manage expectations, there are over 1,500 open issues on this site.
This is now implemented. Pinned tabs are shared between normal windows, but every saved window will have their own pinned tabs. We thought this was the best way to combine two schools of thought.
