diff --git a/src/ZenWorkspaces.mjs b/src/ZenWorkspaces.mjs
index b4b4375..85ff34e 100644
--- a/src/ZenWorkspaces.mjs
+++ b/src/ZenWorkspaces.mjs
@@ -18,6 +18,12 @@ var ZenWorkspaces = new (class extends ZenMultiWindowFeature {
       true,
       this._expandWorkspacesStrip.bind(this)
     );
+    XPCOMUtils.defineLazyPreferenceGetter(
+        this,
+        'shouldForceContainerTabsToWorkspace',
+        'zen.workspaces.force-container-workspace',
+        true
+    );
     ChromeUtils.defineLazyGetter(this, 'tabContainer', () => document.getElementById('tabbrowser-tabs'));
     await ZenWorkspacesStorage.init();
     if(!Weave.Service.engineManager.get("workspaces")) {
@@ -879,7 +885,7 @@ var ZenWorkspaces = new (class extends ZenMultiWindowFeature {
       return [userContextId, false];
     }
 
-    if(Services.prefs.getBoolPref('zen.workspaces.force-container-workspace', false) && typeof userContextId !== 'undefined' && this._workspaceCache?.workspaces) {
+    if(this.shouldForceContainerTabsToWorkspace && typeof userContextId !== 'undefined' && this._workspaceCache?.workspaces) {
       const workspace = this._workspaceCache.workspaces.find((workspace) => workspace.containerTabId === userContextId);
       if(workspace && workspace.uuid !== this.getActiveWorkspaceFromCache().uuid) {
         this.changeWorkspace(workspace).then(() => {