--- a/browser/base/content/browser-fxaccounts.js
+++ b/browser/base/content/browser-fxaccounts.js
@@ -266,32 +266,32 @@ var gFxAccounts = {
       this.panelUILabel.removeAttribute("disabled");
       this.panelUIAvatar.removeAttribute("disabled");
       this.panelUIIcon.removeAttribute("disabled");
     }
 
     let defaultLabel = this.panelUIStatus.getAttribute("defaultlabel");
     let errorLabel = this.panelUIStatus.getAttribute("errorlabel");
     let unverifiedLabel = this.panelUIStatus.getAttribute("unverifiedlabel");
-    let signedInTooltiptext = this.panelUIStatus.getAttribute("signedinTooltiptext");
+    // The localization string is for the signed in text, but it's the default text as well
+    let defaultTooltiptext = this.panelUIStatus.getAttribute("signedinTooltiptext");
 
     let updateWithUserData = (userData) => {
       // Window might have been closed while fetching data.
       if (window.closed) {
         return;
       }
 
       // Reset the button to its original state.
       this.panelUILabel.setAttribute("label", defaultLabel);
-      this.panelUIStatus.removeAttribute("tooltiptext");
+      this.panelUIStatus.setAttribute("tooltiptext", defaultTooltiptext);
       this.panelUIFooter.removeAttribute("fxastatus");
       this.panelUIFooter.removeAttribute("fxaprofileimage");
       this.panelUIAvatar.style.removeProperty("list-style-image");
       let showErrorBadge = false;
-
       if (!this._inCustomizationMode && userData) {
         // At this point we consider the user as logged-in (but still can be in an error state)
         if (this.loginFailed) {
           let tooltipDescription = this.strings.formatStringFromName("reconnectDescription", [userData.email], 1);
           this.panelUIFooter.setAttribute("fxastatus", "error");
           this.panelUILabel.setAttribute("label", errorLabel);
           this.panelUIStatus.setAttribute("tooltiptext", tooltipDescription);
           showErrorBadge = true;
@@ -300,17 +300,16 @@ var gFxAccounts = {
           this.panelUIFooter.setAttribute("fxastatus", "error");
           this.panelUIFooter.setAttribute("unverified", "true");
           this.panelUILabel.setAttribute("label", unverifiedLabel);
           this.panelUIStatus.setAttribute("tooltiptext", tooltipDescription);
           showErrorBadge = true;
         } else {
           this.panelUIFooter.setAttribute("fxastatus", "signedin");
           this.panelUILabel.setAttribute("label", userData.email);
-          this.panelUIStatus.setAttribute("tooltiptext", signedInTooltiptext);
         }
         if (profileInfoEnabled) {
           this.panelUIFooter.setAttribute("fxaprofileimage", "enabled");
         }
       }
       if (showErrorBadge) {
         gMenuButtonBadgeManager.addBadge(gMenuButtonBadgeManager.BADGEID_FXA, "fxa-needs-authentication");
       } else {

--- a/browser/base/content/test/general/browser_fxaccounts.js
+++ b/browser/base/content/test/general/browser_fxaccounts.js
@@ -75,17 +75,17 @@ add_task(function* test_nouser() {
   let promiseUpdateDone = promiseObserver("test:browser_fxaccounts:updateAppMenuItem");
   Services.obs.notifyObservers(null, this.FxAccountsCommon.ONLOGOUT_NOTIFICATION, null);
   yield promiseUpdateDone;
 
   // Check the world - the FxA footer area is visible as it is offering a signin.
   Assert.ok(isFooterVisible())
 
   Assert.equal(panelUILabel.getAttribute("label"), panelUIStatus.getAttribute("defaultlabel"));
-  Assert.ok(!panelUIStatus.hasAttribute("tooltiptext"), "no tooltip when signed out");
+  Assert.equal(panelUIStatus.getAttribute("tooltiptext"), panelUIStatus.getAttribute("signedinTooltiptext"));
   Assert.ok(!panelUIFooter.hasAttribute("fxastatus"), "no fxsstatus when signed out");
   Assert.ok(!panelUIFooter.hasAttribute("fxaprofileimage"), "no fxaprofileimage when signed out");
 
   let promisePreferencesOpened = promiseObserver("test:browser_fxaccounts:openPreferences");
   panelUIStatus.click();
   yield promisePreferencesOpened;
 });
 

--- a/browser/components/customizableui/content/panelUI.inc.xul
+++ b/browser/components/customizableui/content/panelUI.inc.xul
@@ -19,16 +19,17 @@
         <toolbarbutton id="PanelUI-update-status"
                        oncommand="gMenuButtonUpdateBadge.onMenuPanelCommand(event);"
                        wrap="true"
                        hidden="true"/>
         <hbox id="PanelUI-footer-fxa">
           <hbox id="PanelUI-fxa-status"
                 defaultlabel="&fxaSignIn.label;"
                 signedinTooltiptext="&fxaSignedIn.tooltip;"
+                tooltiptext="&fxaSignedIn.tooltip;"
                 errorlabel="&fxaSignInError.label;"
                 unverifiedlabel="&fxaUnverified.label;"
                 onclick="if (event.which == 1) gFxAccounts.onMenuPanelCommand();">
             <image id="PanelUI-fxa-avatar"/>
             <toolbarbutton id="PanelUI-fxa-label"
                            fxabrandname="&syncBrand.fxAccount.label;"/>
           </hbox>
           <toolbarseparator/>