minor details

WebExtension/background/flickr_fixr.js

@@ -1,4 +1,4 @@
-let versionnumber = (function Versionnumber() {  // major.minor.revision
+globalThis.versionnumber = globalThis.versionnumber || (function Versionnumber() {  // major.minor.revision
     function current() {
         if (browser?.runtime) { // webextension versionnumber
             return browser.runtime.getManifest().version;

WebExtension/onboard/onboard.html

@@ -60,15 +60,16 @@ <h2 class="ffo">WARNING on increased <i>minimum requirements</i>!</h2>
   <p class="ffo">In the transition from the deprecated <abbr title="WebExtension Manifest version 2">MV2 platform</abbr> to the new
     <abbr title="WebExtension Manifest version 3">MV3 platform</abbr>, I will have to raise the minimum requirement
     for version of browser to use with this extension. If you like most, are using a "normal" and auto-updating
-    version of <i>Firefox</i> or Chromium (<i>Chrome</i>, <i>Edge</i>, <i>Opera</i>, <i>Brave</i>, etc), you
-    <b>will <em>not</em></b> be affected...</p>
+    version of your browser, you  <b>will <em>not</em></b> be affected...</p>
   <p class="ffo"><em>But</em> if you are using a browser like for example <i><abbr title="Firefox Extended Support Release">Firefox
     ESR</abbr></i>, <i>Tor</i> or <i>Waterfox</i>, there might be a period where you won't be able to update to the
     latest versions of Flickr Fixr. This could become a problem if Flickr makes site-changes being incompatible with
     current version of Flickr Fixr. If Flickr Fixr stops working for you or Flickr Fixr starts breaking Flickr
     functionality, I suggest to (report it to and) look for information and advice in the Flickr Fixr thread in Flickr
     Hacks forum...</p>
-  <p class="ffo">This version <em>might</em> be the last "MV2-version" of Flickr Fixr. But it depends on how and when things evolve. And maybe also depend on my mood 😊</p>
+  <p class="ffo">This version <em>might</em> be the last "MV2-version" of Flickr Fixr (Version released for Chrome and
+    Edge browsers has already moved to MV3 - I'm temporarily maintaining both MV2 and MV3 versions of Flickr Fixr).
+    But it depends on how and when things evolve. And maybe also a bit on my mood 😊</p>
 
   <h2>Help, information, feedback?...</h2>
   <p>Visit the <a href="https://www.flickr.com/groups/flickrhacks/discuss/72157655601688753/" target="_blank">Flickr Fixr thread in Flickr Hacks forum</a>. I regularly watch that thread for new comments.</p>