[BUG] All tabs within the essentials slots are not being themed

[wingmanslcblue]

Describe the bug

Steps to reproduce

Steps to reproduce the behavior:

1. open zen
2. go to an essentiall pinned slot and open it

Expected behavior

Actual behavior

<all tabs had white backgrounds'>

ZenInternet Settings Data

This data was automatically collected to help with debugging.

Click to expand settings data

{
  "reportDate": "2025-08-24T04:54:21.724Z",
  "addonVersion": "2.7.0",
  "currentTabUrl": "https://www.youtube.com/",
  "currentTabHostname": "www.youtube.com",
  "browserInfo": {
    "userAgent": "Mozilla/5.0 (X11; Linux x86_64; rv:140.0) Gecko/20100101 Firefox/140.0",
    "platform": "Linux x86_64"
  },
  "settings": {
    "globalSettings": {
      "enableStyling": true,
      "autoUpdate": true,
      "forceStyling": true,
      "whitelistMode": false,
      "whitelistStyleMode": false,
      "disableTransparency": false,
      "disableHover": false,
      "disableFooter": false,
      "fallbackBackgroundList": [],
      "lastFetchedTime": 1756010663058,
      "welcomeShown": true
    },
    "skipForceList": [
     
    ],
    "skipThemingList": [
      "cad.onshape.com"
    ],
    "fallbackBackgroundList": []
  }
}

Browser Information

• Zen Browser Version:
• Platform: Linux x86_64
• Extension Version: 2.7.0

Additional context

[sameerasw]

I think the issue is with how Zen and firefox loads the cached websites on browser startup. It tries to resume the last session from where it ended but I don't think extensions get loaded with it. As I remember the last time I was able to workaround this was to force reload the page which is not ideal imo.

[wingmanslcblue]

yeah I tried fiddling with it despite reloads and other stuff it persisted and it started doing it on regular tabs I think It could be do to my os it is kde but its steamos and does strange things I will try again on another device and see if it persists

[sameerasw]

I think it might be on browser level transparency than the website itself