reopening a PWA after closing all windows opens new tab page

[TitanNano]

Description

Steps to Reproduce

1. Open a PWA
2. close all windows of the application
3. click on the dock icon of the PWA

Expected Behavior

A new window of the PWA is opened.

Actual Behavior

A new window with the Firefox new tab / home page is opened. There is also no way to get into the PWA anymore and the app has to be closed and restarted.

Additional Information

Environment

• Operating system: macOS

• System architecture: x64

• Installation method: from source

• Firefox version: 90.0.2

• FirefoxPWA extension version: 0.5.0

• FirefoxPWA native version: 0.5.0

[dithom]

Same here, a fix would be awesome!

[DabeDotCom]

I don't know how hard it would be to roll into a proper "fix", but my naïve† workaround was to update the browser.startup.homepage setting in about:config to be the same as the start_url page of the PWA:

1. Open the app's Preferences (e.g., ⌘ Comma on a Mac)
2. While the Preferences page is displayed, open "Developer Tools » Console" (⌘⌥ K)
3. In the console, type: document.location.href="about:config" and hit Enter
4. Accept the Risk
5. Type home into the Search Box, then change the value of the browser.startup.homepage field from about:home to the URL of your PWA and hit Enter

Et voilà! Close the window/tab (⌘ W) and re-open a new one (⌘ N or ⌘ T) and it should launch your app from now on, rather than showing the Firefox "about:home" page...

† PS — It goes without saying, of course, that this is all likely unsupported: YMMV; use at your own risk; void where prohibited; not applicable in New Hampshire; etc. ;-D

[filips123]

Well, at least that workaround is better than nothing. I will try to check how Firefox handles this internally, but if I don't find anything easy and useful, I will just implement setting homepage URL when you launch a PWA.

It might not work when multiple PWAs are in the same profile, but they already don't work properly on macOS (#81) and users should install each into own profile, so I guess it's fine.

[filips123]

I implemented a fix/workaround for this which will be released in 2.0.0. However, it still doesn't work when multiple PWAs are in the same profile. This does not matter currently as multiple PWAs per profile should not be used because of #81, but once it is fixed, this also needs to be reworked.