diff --git a/src/lib/Diff.ts b/src/lib/Diff.ts
index 8c4cea8517..b1436649ea 100644
--- a/src/lib/Diff.ts
+++ b/src/lib/Diff.ts
@@ -158,7 +158,7 @@ export default class Diff {
     const DAG = folderMoves
       .reduce((DAG, action1) => {
         DAG[action1.payload.id] = folderMoves.filter(action2 => {
-          if (action1 === action2 || action1.payload.id === action2.payload.id) {
+          if (action1 === action2 || String(action1.payload.id) === String(action2.payload.id)) {
             return false
           }
           return (
diff --git a/src/lib/LocalTabs.ts b/src/lib/LocalTabs.ts
index 4a3b8a9de3..f651c75043 100644
--- a/src/lib/LocalTabs.ts
+++ b/src/lib/LocalTabs.ts
@@ -117,7 +117,7 @@ export default class LocalTabs implements IResource {
     // Not perfect but good enough (Problem: [a,X,c] => insert(b,0) => [b, X, a, c])
     if (originalTabs.length !== order.length) {
       const untouchedChildren = originalTabs.map((tab, i) => [i, tab]).filter(([, tab]) =>
-        !order.some(item => tab.id === item.id)
+        !order.some(item => String(tab.id) === String(item.id))
       )
       try {
         for (const [index, child] of untouchedChildren) {
diff --git a/src/lib/Scanner.ts b/src/lib/Scanner.ts
index 1c70bc50ca..83630f4ac2 100644
--- a/src/lib/Scanner.ts
+++ b/src/lib/Scanner.ts
@@ -224,7 +224,7 @@ export default class Scanner {
     const moves = this.diff.getActions(ActionType.MOVE)
     const updates = this.diff.getActions(ActionType.UPDATE)
     updates.forEach(update => {
-      if (moves.find(move => move.payload.id === update.payload.id)) {
+      if (moves.find(move => String(move.payload.id) === String(update.payload.id))) {
         this.diff.retract(update)
       }
     })
@@ -265,7 +265,7 @@ export default class Scanner {
 
     for (const folderId in targets) {
       const newFolder = this.newTree.findItem(ItemType.FOLDER, folderId) as Folder
-      const duplicate = this.diff.getActions(ActionType.REORDER).find(a => a.payload.id === newFolder.id)
+      const duplicate = this.diff.getActions(ActionType.REORDER).find(a => String(a.payload.id) === String(newFolder.id))
       if (duplicate) {
         this.diff.retract(duplicate)
       }
diff --git a/src/lib/Tree.ts b/src/lib/Tree.ts
index 7415229679..b4511f248e 100644
--- a/src/lib/Tree.ts
+++ b/src/lib/Tree.ts
@@ -363,7 +363,7 @@ export class Folder {
   static getAncestorsOf(item: TItem, tree: Folder): TItem[] {
     const ancestors = [item]
     let parent = item
-    while (parent.id !== tree.id) {
+    while (String(parent.id) !== String(tree.id)) {
       ancestors.push(parent)
       parent = tree.findItem(ItemType.FOLDER, parent.parentId)
       if (!parent) {
diff --git a/src/lib/adapters/Caching.ts b/src/lib/adapters/Caching.ts
index 058828e949..e7da227b6a 100644
--- a/src/lib/adapters/Caching.ts
+++ b/src/lib/adapters/Caching.ts
@@ -65,7 +65,7 @@ export default class CachingAdapter implements Adapter {
     }
     foundBookmark.url = newBm.url
     foundBookmark.title = newBm.title
-    if (foundBookmark.parentId === newBm.parentId) {
+    if (String(foundBookmark.parentId) === String(newBm.parentId)) {
       return
     }
     const foundOldFolder = this.bookmarksCache.findFolder(
@@ -154,12 +154,12 @@ export default class CachingAdapter implements Adapter {
     }
     order.forEach(item => {
       const child = folder.findItem(item.type, item.id)
-      if (!child || child.parentId !== folder.id) {
+      if (!child || String(child.parentId) !== String(folder.id)) {
         throw new UnknownFolderItemOrderError(id + ':' + JSON.stringify(item))
       }
     })
     folder.children.forEach(child => {
-      const item = order.find((item) => item.type === child.type && item.id === child.id)
+      const item = order.find((item) => item.type === child.type && String(item.id) === String(child.id))
       if (!item) {
         throw new MissingItemOrderError(
           id + ':' + child.inspect()
diff --git a/src/lib/adapters/NextcloudBookmarks.ts b/src/lib/adapters/NextcloudBookmarks.ts
index a9a01076c0..406ff70b57 100644
--- a/src/lib/adapters/NextcloudBookmarks.ts
+++ b/src/lib/adapters/NextcloudBookmarks.ts
@@ -395,7 +395,7 @@ export default class NextcloudBookmarksAdapter implements Adapter, BulkImportRes
           }
         })
       }
-      return recurseChildren(folderId, children).filter(item => item.id !== this.lockId)
+      return recurseChildren(folderId, children).filter(item => String(item.id) !== String(this.lockId))
     } else {
       // We don't have the children endpoint available, so we have to query all bookmarks that exist :(
       await this.getBookmarksList()
@@ -483,7 +483,7 @@ export default class NextcloudBookmarksAdapter implements Adapter, BulkImportRes
         )
       }
       await recurseChildFolders(tree, childFolders, childrenOrder, childBookmarks, layers)
-      return tree.children.filter(item => item.id !== this.lockId)
+      return tree.children.filter(item => String(item.id) !== String(this.lockId))
     }
   }
 
@@ -829,7 +829,7 @@ export default class NextcloudBookmarksAdapter implements Adapter, BulkImportRes
       )
 
       const newFolder = this.tree.findFolder(newBm.parentId)
-      if (!newFolder.children.find(item => item.id === newBm.id && item.type === 'bookmark')) {
+      if (!newFolder.children.find(item => String(item.id) === String(newBm.id) && item.type === 'bookmark')) {
         newFolder.children.push(newBm)
       }
       newBm.id = upstreamId + ';' + newBm.parentId
diff --git a/src/lib/browser/BrowserTree.ts b/src/lib/browser/BrowserTree.ts
index 3eec7c09b9..b0b34cbeec 100644
--- a/src/lib/browser/BrowserTree.ts
+++ b/src/lib/browser/BrowserTree.ts
@@ -36,7 +36,7 @@ export default class BrowserTree implements IResource {
     const recurse = (node, parentId?, rng?) => {
       if (
         allAccounts.some(
-          acc => acc.getData().localRoot === node.id && node.id !== this.rootId && !acc.getData().nestedSync
+          acc => acc.getData().localRoot === node.id && String(node.id) !== String(this.rootId) && !acc.getData().nestedSync
         )
       ) {
         // This is the root folder of a different account and the user doesn't want nested sync
@@ -223,8 +223,8 @@ export default class BrowserTree implements IResource {
     if (realTree.children.length !== order.length) {
       const untouchedChildren = realTree.children.map((child,i) => [i, child]).filter(([, child]) =>
         child.url
-          ? !order.some(item => item.type === ItemType.BOOKMARK && item.id === child.id)
-          : !order.some(item => item.type === ItemType.FOLDER && item.id === child.id)
+          ? !order.some(item => item.type === ItemType.BOOKMARK && String(item.id) === String(child.id))
+          : !order.some(item => item.type === ItemType.FOLDER && String(item.id) === String(child.id))
       )
       try {
         Logger.log('Move untouched children back into place', {untouchedChildren: untouchedChildren.map(([i, item]) => [i, item.id])})
diff --git a/src/lib/strategies/Default.ts b/src/lib/strategies/Default.ts
index ab39dc83ac..08efe4f320 100644
--- a/src/lib/strategies/Default.ts
+++ b/src/lib/strategies/Default.ts
@@ -446,8 +446,8 @@ export default class SyncProcess {
 
               if (
                 // Don't create duplicates!
-                targetPlan.getActions(ActionType.MOVE).find(move => move.payload.id === payload.id) ||
-                sourceDiff.getActions(ActionType.MOVE).find(move => move.payload.id === payload.id) ||
+                targetPlan.getActions(ActionType.MOVE).find(move => String(move.payload.id) === String(payload.id)) ||
+                sourceDiff.getActions(ActionType.MOVE).find(move => String(move.payload.id) === String(payload.id)) ||
                 // Don't move back into removed territory
                 targetRemovals.find(remove => Diff.findChain(mappingsSnapshot, allCreateAndMoveActions, sourceTree, action.payload, remove)) ||
                 sourceRemovals.find(remove => Diff.findChain(mappingsSnapshot, allCreateAndMoveActions, targetTree, action.payload, remove))
@@ -829,12 +829,12 @@ export default class SyncProcess {
     const reconciled = !cacheItem
     const changedLocally =
       (localHash !== cacheHash) ||
-      (cacheItem && localItem.parentId !== cacheItem.parentId)
+      (cacheItem && String(localItem.parentId) !== String(cacheItem.parentId))
     const changedUpstream =
       (cacheHash !== serverHash) ||
       (cacheItem &&
-        cacheItem.parentId !==
-        mappingsSnapshot.ServerToLocal.folder[serverItem.parentId])
+        String(cacheItem.parentId) !==
+        String(mappingsSnapshot.ServerToLocal.folder[serverItem.parentId]))
     return changedLocally || changedUpstream || reconciled
   }
 
diff --git a/src/lib/strategies/Merge.ts b/src/lib/strategies/Merge.ts
index 9411934fee..7b450360c6 100644
--- a/src/lib/strategies/Merge.ts
+++ b/src/lib/strategies/Merge.ts
@@ -128,8 +128,8 @@ export default class MergeSyncProcess extends Default {
               oldItem.parentId = Mappings.mapParentId(mappingsSnapshot, oldItem, action.payload.location)
 
               if (
-                targetPlan.getActions(ActionType.MOVE).find(move => move.payload.id === payload.id) ||
-                sourceDiff.getActions(ActionType.MOVE).find(move => move.payload.id === payload.id)
+                targetPlan.getActions(ActionType.MOVE).find(move => String(move.payload.id) === String(payload.id)) ||
+                sourceDiff.getActions(ActionType.MOVE).find(move => String(move.payload.id) === String(payload.id))
               ) {
                 // Don't create duplicates!
                 return
diff --git a/src/ui/views/native/Tree.vue b/src/ui/views/native/Tree.vue
index ae089832e2..525f228355 100644
--- a/src/ui/views/native/Tree.vue
+++ b/src/ui/views/native/Tree.vue
@@ -392,7 +392,7 @@ export default {
     },
     breadcrumbs() {
       const folders = [this.currentFolder]
-      while (folders[folders.length - 1 ].id !== this.tree.id) {
+      while (String(folders[folders.length - 1 ].id) !== String(this.tree.id)) {
         folders.push(this.findItem(folders[folders.length - 1 ].parentId, this.tree))
       }
       return folders.reverse()