Your data never leaves
your browser.
BookmarkNuke is a self-contained Chrome extension that helps you back up and delete your own X (Twitter) bookmarks. It has no account system, no analytics, and no backend server. This policy explains exactly what it touches — and what it doesn't.
Last updated · June 7, 2026
The short version
We don't collect, transmit, sell, or share any of your data. Everything the extension does happens locally in your browser. The only file it ever writes is the bookmark backup you choose to export, and it saves that to your own computer.
What the extension accesses
To delete your bookmarks, the extension works with data that already lives in your logged-in X session:
Your bookmarksIt reads your bookmarks (URL, author, text, and date) so it can back them up and delete them. This data is processed in your browser and, if you choose to export, written to your Downloads folder.Session cookiesIt reads your existing x.com / twitter.com session so requests act as you — the same way the site does when you delete a bookmark by hand. Cookies are never stored, copied, or sent anywhere.Local storageRun progress and your speed preference are saved with chrome.storage.local so a long run can resume after a reload. This stays on your device and is cleared when a run completes.
What it does NOT do
- No data is sent to us or to any third-party server. There is no server.
- No analytics, no tracking, no advertising identifiers.
- No account, email, or sign-up is ever required.
- Nothing is sold or shared with anyone.
- It runs only on x.com and twitter.com — no other site is accessed.
Permissions, plainly
Chrome requires the extension to declare the permissions it uses. Here is each one and why it exists:
cookiesRead your x.com session so deletions run as the logged-in you. Never stored or transmitted.downloadsSave your backup (JSON / CSV) and optional failure log to your Downloads folder. The only thing written to your machine.scriptingRun the code that performs the fetch-and-delete work on the X page.storageRemember run progress and your speed setting locally so a run can resume.activeTabAct on your current X tab when you start a run from the popup.x.com / twitter.comThe only sites the extension runs on. Both are needed because X redirects between them.
Deletions are permanent
X has no undo for bookmark deletions, so neither does this extension. That is precisely why a backup is exported before anything is removed. Keep your backup — it is the only way to restore a bookmark you later want back.
Changes to this policy
If the extension's data practices ever change, this page and the "last updated" date above will change with them. Material changes will be reflected in the extension's store listing.
Contact
Questions about privacy? Reach out through the support channel listed on the BookmarkNuke Chrome Web Store page.