diff --git a/test/issues/1624.test.js b/test/issues/1624.test.js
index 155f75c..429c6f9 100644
--- a/test/issues/1624.test.js
+++ b/test/issues/1624.test.js
@@ -1,6 +1,6 @@
 const {initializeWithTab} = require("../common");
 
-describe("Delete multiple Containers", function () {
+describe("Remove multiple Containers", function () {
   beforeEach(async function () {
     this.webExt = await initializeWithTab();
   });
@@ -9,7 +9,7 @@ describe("Delete multiple Containers", function () {
     this.webExt.destroy();
   });
 
-  describe("creating a new container", function () {
+  describe("creating three new containers", function () {
     beforeEach(async function () {
       for (let i = 0; i < 3; i++) {
         await this.webExt.popup.helper.clickElementById("container-add-link");
@@ -17,7 +17,7 @@ describe("Delete multiple Containers", function () {
       }
     });
 
-    it("should create it in the browser as well", function () {
+    it("should create these in the browser as well", function () {
       this.webExt.background.browser.contextualIdentities.create.should.have.been.calledThrice;
     });
 
@@ -27,9 +27,25 @@ describe("Delete multiple Containers", function () {
         await this.webExt.popup.helper.clickElementByQuerySelectorAll(".select-container", "last");
         await this.webExt.popup.helper.clickElementById("delete-link");
         await this.webExt.popup.helper.clickElementById("delete-container-ok-link");
+      });
 
+      it("should remove it in the browser as well", function () {
+        this.webExt.background.browser.contextualIdentities.remove.should.have.been.calledWith("firefox-container-7");
+      });
+    });
+
+    describe("manually select one container and delete by backspace key", function () {
+      beforeEach(async function () {
+        await this.webExt.popup.helper.clickElementById("edit-containers-link");
         await this.webExt.popup.helper.clickElementByQuerySelectorAll(".select-container", "last");
 
+        const backspaceKey = 6;
+        const event = new this.webExt.popup.window.KeyboardEvent("keydown",{"keyCode": backspaceKey});
+        this.webExt.popup.window.document.dispatchEvent(event);
+
+        await this.webExt.popup.helper.clickElementById("delete-container-ok-link");
+
+
       });
 
       it("should remove it in the browser as well", function () {
@@ -37,7 +53,26 @@ describe("Delete multiple Containers", function () {
       });
     });
 
-    describe("manually click select multiple contaienr and delete by delete button", function () {
+    describe("manually select one container and delete by delete key", function () {
+      beforeEach(async function () {
+        await this.webExt.popup.helper.clickElementById("edit-containers-link");
+        await this.webExt.popup.helper.clickElementByQuerySelectorAll(".select-container", "last");
+
+        const deleteKey = 46;
+        const event = new this.webExt.popup.window.KeyboardEvent("keydown",{"keyCode": deleteKey});
+        this.webExt.popup.window.document.dispatchEvent(event);
+
+        await this.webExt.popup.helper.clickElementById("delete-container-ok-link");
+
+
+      });
+
+      it("should remove it in the browser as well", function () {
+        this.webExt.background.browser.contextualIdentities.remove.should.have.been.calledWith("firefox-container-7");
+      });
+    });
+
+    describe("manually click select two containers and delete by delete button", function () {
       beforeEach(async function () {
         await this.webExt.popup.helper.clickElementById("edit-containers-link");
 
@@ -50,9 +85,52 @@ describe("Delete multiple Containers", function () {
 
       });
 
-      it("should remove it in the browser as well", function () {
+      it("should remove it in the browser twice as well", function () {
         this.webExt.background.browser.contextualIdentities.remove.should.have.been.calledTwice;
       });
+
+      it("should remove the container # 7 as well", function () {
+        this.webExt.background.browser.contextualIdentities.remove.should.have.been.calledWith("firefox-container-7");
+      });
+
+      it("should remove the container # 6 as well", function () {
+        this.webExt.background.browser.contextualIdentities.remove.should.have.been.calledWith("firefox-container-6");
+      });
+    });
+
+    describe("manually shift click select multiple containers and delete by delete button", function () {
+      beforeEach(async function () {
+        await this.webExt.popup.helper.clickElementById("edit-containers-link");
+
+        const nodeArray = Array.from(this.webExt.popup.window.document.querySelectorAll(".select-container"));
+        nodeArray[4].click();
+
+        const shiftKey = 16;
+        const event = new this.webExt.popup.window.KeyboardEvent("keydown",{"keyCode": shiftKey});
+        this.webExt.popup.window.document.dispatchEvent(event);
+
+        nodeArray[6].click();
+
+        await this.webExt.popup.helper.clickElementById("delete-link");
+        await this.webExt.popup.helper.clickElementById("delete-container-ok-link");
+
+      });
+
+      it("should remove these three containers in the browser as well", function () {
+        this.webExt.background.browser.contextualIdentities.remove.should.have.been.calledThrice;
+      });
+
+      it("should remove the container # 5 as well", function () {
+        this.webExt.background.browser.contextualIdentities.remove.should.have.been.calledWith("firefox-container-5");
+      });
+
+      it("should remove the container # 6 as well", function () {
+        this.webExt.background.browser.contextualIdentities.remove.should.have.been.calledWith("firefox-container-6");
+      });
+
+      it("should remove the container # 7 as well", function () {
+        this.webExt.background.browser.contextualIdentities.remove.should.have.been.calledWith("firefox-container-7");
+      });
     });
   });
 });
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