Remove unnecessary tabs permission from Tab to the next extension

[Copilot]

Chrome Web Store flagged Tab to the next for excessive permissions: the extension requested tabs even though its implemented behavior does not require that permission. This PR narrows requested access to align with policy.

• Permission scope reduction

  • Updated tab-to-the-right/manifest.json to remove tabs from permissions.
  • Kept storage unchanged.

• Behavioral impact

  • No feature logic changes; background tab-management behavior remains implemented in existing code.
  • Change is limited to manifest permission surface.

"permissions": [
  "storage"
]

[wh5a]

@copilot How does the extension rearrange tabs without this permission? Can you explain with links to the code?

[Copilot]

Good question. It still works because the extension only uses tab operations + non-sensitive tab fields, which are allowed without the tabs permission.

Code paths:

• Query tabs by window (no sensitive fields): getTabs() → background.js#L49-L51
• Initial cache from all tabs (only stores id + active): background.js#L62-L76
• Reorder newly created tab with chrome.tabs.move(...): background.js#L149-L160
• Activate adjacent tab on close with chrome.tabs.update(..., { active: true }): background.js#L166-L194

It does not read restricted fields like url, title, favIconUrl, etc., so broad tabs permission is unnecessary here. The permission change is in commit 012afc9.