preference fails to open in Thunderbird ( Mac version )

When I try to open preference in the extension of Thunderbird, there will be an extra window popping out and showing “Click the ‘ok’ button to open the Markdown Here Options tab”.

However the ok button is not shown in this window. I captured this screen and put in the attachment below.

The alternative solution I can find online is related to Options page doesn’t appear in Firefox #369, by manually opening the error console of Thunderbird by [cmd+shift+j] and pasting

Components.classes['@mozilla.org/appshell/window-mediator;1'].getService(Components.interfaces.nsIWindowMediator).getMostRecentWindow('mail:3pane').document.getElementById('tabmail').openTab('contentTab', {contentPage: 'resource://markdown_here_common/options.html'})

into the eval field and pressing [enter] to open the preference setting of Markdown Here.

Will there be any better solution to sort out this bug in this extension in Mac version?

[obillard]

I cannot open the preferences too on Thunderbird : Ubuntu 16.04, Thunderbird 52.3, Markdown Here 2.13.2. But I have another error, maybe linked to the others:

Translated in english:

XML analysis error: entity not defined
Location: chrome://markdown_here/content/options.xul
Line 6, column 1:
<prefwindow id="markdown-here-options-intermediate"
^

Pasting the code in the console like described in the alternative solution also works for me.

[emont01]

I have the same problem ThunderBird: 52.8.0 User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0 Markdown here: 2.13.2

I also confirmed that the following code displays the preferences correctly

Components.classes['@mozilla.org/appshell/window-mediator;1'].getService(Components.interfaces.nsIWindowMediator).getMostRecentWindow('mail:3pane').document.getElementById('tabmail').openTab('contentTab', {contentPage: 'resource://markdown_here_common/options.html'})