"Tab Split" button doesn't work in other windows

[Softvision-CristinaBadescu]

[Affected versions]:

• Nightly 60.0a1
• Tab Split 1.0a5

[Affected Platforms]:

• All Windows

[Prerequisites]:

• Have a Firefox profile with the latest "Tab Split" v1.0a5 installed.

[Steps to reproduce]:

1. Open Firefox browser with the profile from prerequisites.
2. Open a new window.
3. Click the "Tab Split" button.

[Expected result]:

• The tab is split.

[Actual result]:

• Nothing happens.

[Notes]:

• This issue is reproducible no matter how many windows (new windows and private windows) you open.
• Here is a screen recording with this issue:

[fzzzy]

I believe this is fixed now, following the current two-step installation of loading both "experiment/schema.json" and "webext/manifest.json" into about:debugging.

Please re-open if this still occurs.

[Softvision-CristinaBadescu]

This issue is no longer reproducible using Tab Split v0.1.7, on latest Nightly build 60.0a1 (2018-02-09), on Windows 10 x64, Mac 10.12.6 and Ubuntu 14.04 x64.