diff --git a/.github/config/.finnishwords.txt b/.github/config/.finnishwords.txt
index 170fd6641..a28e3eb9d 100644
--- a/.github/config/.finnishwords.txt
+++ b/.github/config/.finnishwords.txt
@@ -3,6 +3,7 @@ ajaksi
 alapuolisesta
 alaviiva
 alikansio
+alikansioiden
 alikansion
 alikansiot
 alkanut
@@ -313,6 +314,7 @@ ne
 niiden
 niin
 nimellä
+nimet
 nimetä
 nimeä
 nimi
@@ -390,6 +392,7 @@ pienemmissä
 pienennä
 piilota
 piste
+pitkiä
 poiketa
 pois
 poissa
@@ -644,6 +647,7 @@ uusia
 vaatii
 vaihda
 vaihto
+vain
 valikkoon
 valikossa
 valinnan
@@ -674,6 +678,7 @@ virhe
 virheellinen
 voi
 voida
+voidaan
 voidaksesi
 voit
 voivat
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4504f7102..df7c1abae 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -80,6 +80,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   - Move upload, download fetch calls to workers to reduce messaging overhead
 - (GL #1145) Added new api for modifying write access from container's access control list
 - (GL #1151) New folder moved to the top of the table for a while when created via Upload modal or Create Folder modal
+- (GL #1147) Add a toast when user cannot download archive due to ustar limits on file path
 
 ### Changed
 
diff --git a/swift_browser_ui_frontend/src/common/globalFunctions.js b/swift_browser_ui_frontend/src/common/globalFunctions.js
index b7926ee7c..296f7540f 100644
--- a/swift_browser_ui_frontend/src/common/globalFunctions.js
+++ b/swift_browser_ui_frontend/src/common/globalFunctions.js
@@ -242,3 +242,25 @@ export async function updateObjectsAndObjectTags(
     }
   }
 }
+
+export function checkIfCanDownloadTar(objs, isSubfolder) {
+  if (!objs) {
+    return true;
+  }
+  else if (isSubfolder && objs.length === 1) {
+    //no tar when single file in a subfolder
+    return true;
+  }
+  else {
+    //file or subfolder name max 99 chars, prefix max 154
+    const pathOk = objs.every(
+      (path) => {
+        const elements = path.split("/");
+        if (elements.find(el => el.length > 99)) return false;
+        if (elements.length > 2 &&
+          path.length - elements.slice(-1)[0].length > 154) return false;
+        return true;
+      });
+    return pathOk;
+  }
+}
diff --git a/swift_browser_ui_frontend/src/common/lang.js b/swift_browser_ui_frontend/src/common/lang.js
index fcbbe37b8..72b50ea5a 100644
--- a/swift_browser_ui_frontend/src/common/lang.js
+++ b/swift_browser_ui_frontend/src/common/lang.js
@@ -185,6 +185,9 @@ let default_translations = {
         invalid_share_ids: " are not valid Share IDs. Please remove them.",
       },
       download: " Download",
+      downloadFiles: "Files can only be downloaded " +
+      "individually because there are file or subfolder names longer than " +
+      "99 characters.",
       largeDownMessage:
         "No large (> 1GiB) downloads enabled. Click to " +
         "enable them for the duration of the session.",
@@ -578,6 +581,9 @@ let default_translations = {
           " eivät ole kelvollisia jakamistunnuksia. Poistakaa ne.",
       },
       download: " Lataa",
+      downloadFiles: "Tiedostot voidaan ladata vain " +
+      "erikseen, koska tiedostojen tai alikansioiden nimet ovat " +
+      "yli 99 merkkiä pitkiä.",
       largeDownMessage:
         "Suurten tiedostojen (> 1Gt) lataus täytyy hyväksyä " +
         "erikseen. Paina hyväksyäksesi suuret lataukset " +
diff --git a/swift_browser_ui_frontend/src/components/CObjectTable.vue b/swift_browser_ui_frontend/src/components/CObjectTable.vue
index d4dad73ed..0e3c0a551 100644
--- a/swift_browser_ui_frontend/src/components/CObjectTable.vue
+++ b/swift_browser_ui_frontend/src/components/CObjectTable.vue
@@ -44,6 +44,7 @@ import {
   getPrefix,
   getPaginationOptions,
   checkIfItemIsLastOnPage,
+  checkIfCanDownloadTar,
 } from "@/common/globalFunctions";
 import {
   setPrevActiveElement,
@@ -413,14 +414,24 @@ export default {
             return obj.name.startsWith(object.name);
           })
           .map(item => item.name);
-        if (DEV) console.log(subfolderFiles);
-        this.$store.state.socket.addDownload(
-          this.$route.params.container,
-          subfolderFiles,
-          this.$route.params.owner ? this.$route.params.owner : "",
-        ).then(() => {
-          if (DEV) console.log(`Started downloading subfolder ${object.name}`);
-        });
+        const canDownload = checkIfCanDownloadTar(subfolderFiles, true);
+        if (canDownload) {
+          this.$store.state.socket.addDownload(
+            this.$route.params.container,
+            subfolderFiles,
+            this.$route.params.owner ? this.$route.params.owner : "",
+          ).then(() => {
+            if (DEV) console.log(`Started downloading subfolder ${object.name}`);
+          });
+        } else {
+          document.querySelector("#container-error-toasts")
+            .addToast(
+              { progress: false,
+                type: "error",
+                duration: 6000,
+                message: this.$t("message.downloadFiles")},
+            );
+        }
       } else {
         this.$store.state.socket.addDownload(
           this.$route.params.container,
diff --git a/swift_browser_ui_frontend/src/components/ContainerTable.vue b/swift_browser_ui_frontend/src/components/ContainerTable.vue
index 7567d5835..072565460 100644
--- a/swift_browser_ui_frontend/src/components/ContainerTable.vue
+++ b/swift_browser_ui_frontend/src/components/ContainerTable.vue
@@ -44,6 +44,7 @@ import {
   getPaginationOptions,
   toggleCopyFolderModal,
   checkIfItemIsLastOnPage,
+  checkIfCanDownloadTar,
 } from "@/common/globalFunctions";
 import {
   setPrevActiveElement,
@@ -52,6 +53,7 @@ import {
 import { toRaw } from "vue";
 import {
   swiftDeleteContainer,
+  getObjects,
 } from "@/common/api";
 
 export default {
@@ -277,15 +279,16 @@ export default {
                       text: true,
                       size: "small",
                       title: this.$t("message.download"),
-                      onClick: () => {
-                        this.beginDownload(
+                      onClick: async () => {
+                        await this.containerDownload(
                           item.name,
                           item.owner ? item.owner : "",
                         );
                       },
                       target: "_blank",
                       path: mdiTrayArrowDown,
-                      disabled: item.owner && item.accessRights?.length === 0,
+                      disabled: (item.owner && item.accessRights?.length === 0)
+                        || !item.bytes,
                     },
                   },
                 },
@@ -362,8 +365,8 @@ export default {
                             path: mdiDotsHorizontal,
                             title: this.$t("message.options"),
                             size: "small",
-                            disabled: item.owner &&
-                              item.accessRights?.length === 0,
+                            disabled: (item.owner &&
+                              item.accessRights?.length === 0) || !item.bytes,
                           },
                         },
                       },
@@ -503,6 +506,24 @@ export default {
         if (DEV) console.log(`Started downloading all objects from container ${container}`);
       });
     },
+    async containerDownload(containerName, owner) {
+      let containerObjs = await getObjects(this.active.id, containerName);
+      containerObjs = containerObjs.map(obj => obj.name);
+
+      const canDownload = checkIfCanDownloadTar(
+        containerObjs, false);
+      if (canDownload) {
+        this.beginDownload(containerName, owner);
+      } else {
+        document.querySelector("#container-error-toasts")
+          .addToast(
+            { progress: false,
+              type: "error",
+              duration: 6000,
+              message: this.$t("message.downloadFiles")},
+          );
+      }
+    },
     getEmptyText() {
       if (this.$route.name == "SharedFrom") {
         return this.$t("message.emptyProject.sharedFrom");