Extension to manage tabs: changing tab index is via Tabs API is unpredictable

romasio

romasio

So this is a weird one related to chrome.tabs API through which I am attempting to reorder tabs.

I have workspaces with 50+ tabs and I am not sure if workspace or tabs got into some bad disorganized state behind the scenes, but when I attempt to move last tab by one index up, i.e.

await chrome.tabs.move(ourTab.id, {
    index: ourTab.index - 1
});

it stays in the place, index does not change.

If I randomly attempt to move it to ourTab.index - 10, it does move, but not by 10 positions/tabs, but only by a few...

In some workspaces it works fine, in some it does not.
My workspace has no tab groups.
No pinned tabs.
Listing out current workspace tab indices, it does not start from 0, but rather from 8.
Extension has required tabs and tabsGroup permission.
Restarting browser makes no difference.

Opera One(version: 122.0.5643.150) (arm64)
Opera is up to date
Update stream:Stable
System:macOS Version 15.7.1 (Build 24G231) 15.7.1 arm64
Chromium version:138.0.7204.251

Any ideas?