Is FeHelper(前端助手) safe?
FeHelper wires a remote code-execution hook into every tool page; dormant in this build, but only the vendor can ever populate it.
Every one of FeHelper's roughly 25 tool pages asks the background script for a patch keyed to the installed version, and if one is found the returned CSS is injected and the returned JavaScript is run directly via new Function(). In the current version nothing writes to the storage key that mechanism reads from, so the hook does not fire, but that key lives in the extension's own private storage, meaning only the vendor's own code can populate it in a future update. A separate, unrelated handler fetches a JSON file from fehelper.com to populate recommendation cards on the options page.
Part of this rating comes from analysis signals we haven't published as detailed findings yet.
Who publishes it阿烈叔 - no other listings under this identity, 6 shared hostnames
阿烈叔 - no other listings under this identity, 6 shared hostnames
What this publisher told the store about itself, and the other listings that told it the same thing.
Shared hosts - 6 hostnames
Hostnames hardcoded in this extension that few other listings call. That can mean one operator behind both, and it can equally mean a small shared vendor, so it is context rather than a conclusion. Hosts that many listings call are left out: they are services, not connections.
AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.
Publishers can request a review.
What it can do
Permissions this extension asks for, as declared in version 2026.6.4. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.
Read and change your data on every site you visit
http://*/* and 1 more
Read and change your data on every secure site you visit
https://*/*
Schedule its own background tasks
alarms
See the address and title of every tab you have open
tabs
Run its own code inside the pages you visit
scripting
Add items to the right-click menu
contextMenus
Act on the current tab, but only after you click the extension
activeTab
Store data in your browser
storage
Show you desktop notifications
notifications
Store an unlimited amount of data in your browser
unlimitedStorage
See every page you navigate to, as you navigate to it
webNavigation
Where it sends data
Destinations our analysis observed fehelper-前端助手 contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.
- fehelper.com
fehelper-前端助手 sends data to fehelper.com. One other extension we have analyzed sends data here.