[sirinsidiator]

I'm having the same issue on Windows 11 22H2 with Firefox 108.0.1. I just did a bit of digging and it seems to be a server side issue.
When I compare the source coming from the server for a forum editor and a comment editor, the html elements for the editor buttons in questions are completely missing:
https://www.esoui.com/forums/newrepl...uote=1&p=46890

<td id="vB_Editor_001" class="vBulletin_editor" width="100%">
<div id="vB_Editor_001_controls" class="controlbar">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td><div class="imagebutton" id="vB_Editor_001_cmd_removeformat"><img src="//cdn-eso.mmoui.com/images/style_esoui/editor/removeformat.gif" width="21" height="20" alt="Remove Text Formatting" /></div></td>
<td><img src="//cdn-eso.mmoui.com/images/style_esoui/editor/separator.gif" width="6" height="20" alt="" /></td>
<td><div class="imagebutton" id="vB_Editor_001_popup_fontname" title="Fonts">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="popup_feedback"><div id="vB_Editor_001_font_out" style="width:91px">&nbsp;</div></td>
<td class="popup_pickbutton"><img src="//cdn-eso.mmoui.com/images/style_esoui/editor/menupop.gif" width="11" height="16" alt="" /></td>
</tr>
</table>
</div></td>
<td><div class="imagebutton" id="vB_Editor_001_popup_fontsize" title="Sizes">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="popup_feedback"><div id="vB_Editor_001_size_out" style="width:25px">&nbsp;</div></td>
<td class="popup_pickbutton"><img src="//cdn-eso.mmoui.com/images/style_esoui/editor/menupop.gif" width="11" height="16" alt="" /></td>
</tr>
</table>
</div></td>

https://www.esoui.com/downloads/addc...ent&fileid=695

<td id="vB_Editor_001" class="vBulletin_editor" width="100%">
<div id="vB_Editor_001_controls" class="controlbar">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td><div class="imagebutton" id="vB_Editor_001_cmd_removeformat"><img src="//cdn-eso.mmoui.com/images/style_esoui/editor/removeformat.gif" width="21" height="20" alt="Remove Text Formatting" /></div></td>
<td><img src="//cdn-eso.mmoui.com/images/style_esoui/editor/separator.gif" width="6" height="20" alt="" /></td>
<td><div class="imagebutton" id="vB_Editor_001_popup_smilie" title="Smilies">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td><img src="//cdn-eso.mmoui.com/images/style_esoui/editor/smilie.gif" alt="" width="21" height="20" /></td>
<td class="alt_pickbutton"><img src="//cdn-eso.mmoui.com/images/style_esoui/editor/menupop.gif" width="11" height="16" alt="" /></td>
</tr>
</table>
</div></td>

I also noticed that vBulletin is disabling the javascript console in vbulletin_global.js on line 1, unless console.firebug is set. Since firebug no longer exists, this means nobody will ever see any errors in case there are some. Not that there are any in this case.