Start SyncNow - Can't find bookmark for id.

[PrzemekRyk]

Well - this is what I get when I try to sync or force pull bookmarks. The same situation with Edge, Chrome and Opera. :(

What should I provide?

[dudor]

@PrzemekRyk I encountered this error during testing. The cause was an issue with the root bookmark node ID mapping in the JSON data in the cloud, which I later fixed. You can try using the overwrite remote feature to see if it works.

[WillieHeckerslyke]

So I was a bit confused on my mac a couple of days ago when I got the 'new permissions' prompt, but it all looked ok so accepted. I've just gone onto my Linux Mint machine (Firefox) and tried to update my bookmarks as I knew they'd changed slightly since last using it, but I get an error along the lines of 'git null, unable to sync'.

I thought it must be bc of the updates but when I tried 'check for updates' none were available.

What to do now?

[dudor]

@WillieHeckerslyke I see. The version in Firefox is still the old one; the new version is still under review, so it might take a few days.

[earoftoast]

Helium 与 Chrome 的 root bookmark node ID 好像不一致，导致 Can't find bookmark for id.
https://gist.github.com/earoftoast/c84f353d8b8f470c6acacaaf49f993af/revisions

[dudor]

@earoftoast @PrzemekRyk @WillieHeckerslyke 感谢，是这个根节点的问题，我之前修复了chrome，firefox和edge的根节点映射的bug，但是其它的浏览器还没有进行完整测试，接下来会尽量覆盖测试。

[nevdelap]

Hi there. I have this in Brave, Chrome is working, on Linux. v1.0.1. Brave has synced from remote as it was, but does not sync from or to remote for new changes on either side. Removing and re-adding the extension and reconfiguring it doesn't help. Closing and reopening Brave doesn't help.

Chrome:

Brave:

Thank you!

[dudor]

@earoftoast @nevdelap 这些出现问题的浏览器，你们有修改过它的userAgent吗？

[earoftoast]

没有修改过，Helium 和 Chrome 都是如下默认的userAgent。
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36

[nevdelap]

@dudor No. I've never fiddled with useragent. Both browsers are configured the same, I just separate work on Chrome and personal on Brave. BTW, Chrome has a few more extensions installed, but all the ones installed in Brave are installed in both.

@dudor 没有，我从来没有修改过userAgent。两个浏览器的配置是一样的，我只是用Chrome处理工作事务，用Brave处理个人事务。顺便说一下，Chrome安装了更多的扩展程序，但Brave里安装的扩展在两个浏览器中都有安装。

Chrome: (working) （正常）

Brave: (not working)（不正常）

[dudor]

@nevdelap @earoftoast 好的，应该不是useragent的原因，我再排查下代码

[nevdelap]

@dudor BTW, I have the same Chrome/Brave split on my machine at work. There Brave syncs fine.

@dudor 顺便说一句，我的工作机器上也有同样的 Chrome/Brave 分离情况。在那里 Brave 的同步功能运行良好。

[nevdelap]

@dudor I've had Claude diagnose the problem. 我让 Claude 诊断了这个问题。

BookmarkHub "Can't find bookmark for id" on Brave (Default profile)

Symptoms

• BookmarkHub Sync fails with "Can't find bookmark for id." on Brave Default profile
• Works on another Brave profile on the same machine
• Works on Chrome and Brave on other machines
• Persists after uninstalling and clearing extension data

Root Cause

The Brave Default profile has non-standard internal IDs for its root bookmark folders:

Folder	Expected ID	Actual ID
Bookmarks bar	1	1 ✓
Other bookmarks	2	163 ✗
Mobile bookmarks	3	168 ✗

BookmarkHub hardcodes Chromium root folder IDs as {1: BAR, 2: OTHER, 3: MOBILE}. During sync it calls chrome.bookmarks.getChildren("2"), but no bookmark with ID 2 exists in this profile. Chrome throws:

Can't find bookmark for id: 2

Why reinstalling the extension doesn't help: The broken IDs are in the Brave profile's Bookmarks JSON file, not in extension storage. The extension downloads the remote Gist and immediately hits the same failure.

Why other profiles/machines work: They have standard root folder IDs (1, 2, 3) that match the hardcoded values.

Why those IDs: A browser migration or import (e.g. Brave importing from Chrome on first launch) created and deleted many bookmarks, advancing the internal ID counter past 2 and 3. Those IDs were never reassigned to the root folders.

Fix

Close Brave completely before editing.

1. Back up the Bookmarks file:

cp ~/.config/BraveSoftware/Brave-Browser/Default/Bookmarks \
   ~/.config/BraveSoftware/Brave-Browser/Default/Bookmarks.bak

2. Edit ~/.config/BraveSoftware/Brave-Browser/Default/Bookmarks:

In the roots object, update the id fields:

"other": {
   "children": [],
   "id": "2",
   ...
},
"synced": {
   "children": [],
   "id": "3",
   ...
}

(Was "163" and "168" respectively.)

This is safe because:

• Both other and synced folders are empty (no children to re-parent)
• IDs 2 and 3 are not used anywhere else in the file
• Brave recalculates the file checksum on next launch

3. Relaunch Brave and sync.

---

BookmarkHub「找不到书签 ID」问题（Brave 默认配置文件）

症状

• BookmarkHub 同步失败，提示 「Can't find bookmark for id.」，仅出现在 Brave 默认配置文件中
• 同一台机器上的其他 Brave 配置文件可以正常同步
• Chrome 及其他机器上的 Brave 均可正常同步
• 卸载扩展并清除数据后问题依旧

根本原因

该 Brave 默认配置文件中，根书签文件夹的内部 ID 不符合标准：

文件夹	预期 ID	实际 ID
书签栏	1	1 ✓
其他书签	2	163 ✗
移动设备书签	3	168 ✗

BookmarkHub 将 Chromium 根文件夹 ID 硬编码为 {1: BAR, 2: OTHER, 3: MOBILE}。同步时会调用 chrome.bookmarks.getChildren("2")，但该配置文件中不存在 ID 为 2 的书签，Chrome 因此抛出错误：

Can't find bookmark for id: 2

重装扩展为何无效： 问题出在 Brave 配置文件的 Bookmarks JSON 文件中，与扩展本身的存储数据无关。扩展从远程 Gist 下载数据后，立即触发同样的错误。

其他配置文件和机器为何正常： 它们的根文件夹 ID 均为标准值（1、2、3），与硬编码值一致。

为何会出现非标准 ID： 浏览器迁移或导入操作（例如 Brave 首次启动时从 Chrome 导入书签）创建并删除了大量书签，导致内部 ID 计数器超过了 2 和 3，这两个 ID 未能分配给根文件夹。

修复方法

编辑前请完全关闭 Brave。

1. 备份 Bookmarks 文件：

cp ~/.config/BraveSoftware/Brave-Browser/Default/Bookmarks \
   ~/.config/BraveSoftware/Brave-Browser/Default/Bookmarks.bak

2. 编辑 ~/.config/BraveSoftware/Brave-Browser/Default/Bookmarks：

在 roots 对象中修改对应的 id 字段：

"other": {
   "children": [],
   "id": "2",
   ...
},
"synced": {
   "children": [],
   "id": "3",
   ...
}

（原值分别为 "163" 和 "168"。）

此操作是安全的，原因如下：

• other 和 synced 文件夹均为空（无子书签需要重新指定父级）
• 文件中没有其他书签使用 ID 2 或 3
• Brave 下次启动时会自动重新计算文件校验和

3. 重新启动 Brave，执行同步。

[dudor]

@nevdelap The clue you provided is really important. I always thought that the system folder IDs in Chrome‑based browsers were always 1, 2, 3 — I never expected they could change in Brave. I’ve fixed it now and testing.

[imdavor]

Hi.
I had the same problem with Edge. I installed v1.0.2 Beta for Chrome and sync is now working. :)