Add support for Thunderbird 60

See https://wiki.mozilla.org/Thunderbird/Add-ons_Guide_57 for changes
relevant to Thunderbird 60. This commit also bumps up the minimum
supported version to Thunderbird 52.

1 files changed, 1 insertions, 1 deletions

diff --git a/chrome/content/accountWizard/accountWizard.js b/chrome/content/accountWizard/accountWizard.js
index cdd02f0..b04b2a9 100644
--- a/chrome/content/accountWizard/accountWizard.js
+++ b/chrome/content/accountWizard/accountWizard.js
@@ -589,7 +589,7 @@ BitmaskAccountWizard.prototype =
         { id: "next_button", action: makeCallback(this, this.onNext) },
         { id: "create_button", action: makeCallback(this, this.onCreate) },
       ];
-      for each (let button in buttons) {
+      for (let button of buttons) {
         button.e = e(button.id);
         if (button.e.hidden || button.e.disabled) {
           continue;