Hello HN,

I was tired of the constant cycle of logging in/out to test different user roles (admin, user, etc.), which meant manually clearing and setting `localStorage`, `sessionStorage`, and cookies. It was a huge time sink.

So, I built "Tab Storage Copier," a browser extension that treats tab states like git branches.

The core feature is *Profiles*: - *Save Profile*: Take a complete snapshot of a tab's storage (local, session, cookies) and name it (e.g., "Admin User", "Test Account"). You can even save multiple versions for each profile. - *Load Profile*: Instantly apply a saved profile to your current tab. Switching between complex user states becomes a two-click process. - *Manage*: A simple UI to delete old profiles and versions.

It also has the basics covered: - *One-Click Copy*: Quickly copy storage from any tab to your active one. - *Quick Clear*: Wipe storage from the current tab without digging through DevTools.

It's a workflow tool I now can't live without. It’s free and open source. I'd love to get your feedback.

Get it for your browser: - Chrome: https://chromewebstore.google.com/detail/tab-storage-copier/... - Edge: https://microsoftedge.microsoft.com/addons/detail/tab-storag... - Firefox: https://addons.mozilla.org/en-US/firefox/addon/tab-storage-c...