[BUG] Extension fails to open in instagram

[Lucas559-noob]

Pre-check

• I have searched existing issues and confirmed this is not a duplicate.
• I have tested with the latest stable or beta version where possible.
• This is not a security vulnerability. Security issues should be reported privately through Security Advisory.

Issue Area

Popup / Options page / UI

Problem Description

On instagram website, the extension can't be opened, the UI never loads, while on other website it loads fine.

Minimal Reproduction Steps

Install ScriptCat
Go into Instagram website
Click to open extension while on the website
UI never loads

Expected Behavior vs Actual Behavior

UI loads like in other website

Actual:UI stuck on loading

ScriptCat Version

v0.16.15

ScriptCat Channel

Firefox Stable / MV2

Manifest / Extension Mode

MV2 / Firefox

Operating System

Windows 11 25h2

Browser and Version

Firefox 152.0.6

Device Type

Desktop

Browser / Extension State

• Incognito / InPrivate / Private Window is enabled
• Mobile browser extension support is being used
• Third-party Chromium-based browser is being used
• Third-party Firefox / Gecko-based browser is being used
• ScriptCat has been granted site access permission for the target website
• Developer mode is enabled
• Other extensions may affect pages, requests, or userscripts

Related Userscript / Configuration

No response

Logs / Error Messages / Screenshots

console-export-2026-7-15_14-24-38.log

Temporary Workaround

No response

[cyfung1031]

Scriptcat for Firefox is old. We will make the new Scriptcat for Firefox for Firefox 154+.