> By xul, I put a button into the mail header toolbar.
> In TB 52.9.1, it comes up with its label.
> In a separate TB 60 installation, there comes up a button without text nor icon.
> The other buttons (reply etc) all have icon, no text. Is text no longer allowed?
> Or is my locale wrong? Win 10 is DE, TB 60 is in English, my addon has locales DE-DE and EN-US.
> In any case, why would TB 60 be in English? How can I find out which English version it is?
The bindings for the toolbar customization have moved from "global" to
"messenger". If your add-on has customizable icons, please modify your
chrome.manifest as shown below:
chrome://.../skin/... .css appversion<59.0a1
chrome://.../skin/... .css appversion>=59.0a1
dev-apps-thunderbird mailing list
[hidden email] https://lists.mozilla.org/listinfo/dev-apps-thunderbird