many problems after update 131

[goashir]

Hi

after update firefox 131.0 (20240923135042) on windows on main version(Release channel users) after each reopening of firefox,its open on new tab below link:

https://www.mozilla.org/fa/firefox/131.0/whatsnew/?oldversion=127.0&utm_medium=firefox-desktop&utm_source=update&utm_campaign=131

Since I also have the developer version , I noticed that the feature of changing toolbar options has been added So I tried to change the options and it worked fine. But after opening Firefox every time, it returns to its normal state

[Agentvirtuel]

Hello

Maybe?

Take a look at https://connect.mozilla.org/t5/ideas/make-the-quot-what-s-new-quot-tab-respect-browser-tabs/idi-p/59...

The Enterprise Policy Generator https://addons.mozilla.org/firefox/addon/enterprise-policy-generator helps to create the configuration file

---

Specify user-defined preferences (about:config)

{
  "policies": {
    "Preferences": {
      "browser.startup.homepage_override.mstone": {
        "Status": "locked",
        "Value": "Ignore"
      }
    }
  }
}

[goashir]

Oh, I think the problem is somewhere else!

I changed the following statement in about:config to "ignore" :

browser.startup.homepage_override.mstone

And after opening the browser again, the value was back to 131 in about:config!

[Agentvirtuel]

Try

OverridePostUpdatePage https://mozilla.github.io/policy-templates/#overridepostupdatepage

---

Override the upgrade page. If the value is an empty string (“”), no extra pages are displayed when Firefox is upgraded.

---

The Enterprise Policy Generator helps to create the configuration file

---

Replace the “What's new” page after the update. Set this policy to empty if you want to disable the post-update page.

---

{
  "policies": {
    "OverridePostUpdatePage": ""
  }
}

An illustration https://www.youtube.com/embed/hRHh6xCPmpI

[goashir · Accepted solution]

After 24 hours of trying, I finally found the problem😀😀😀
It is related to the user.js file in the profile folder and the following line
user_pref("browser.search.widget.inNavBar", true);