Bugzilla

**Found in**
* Firefox Enterprise 149.0a1 (2026-02-21)

**Tested platforms**
* Affected platforms: All

**Preconditions**
* Have a **WebsiteFilter** policy set up at company level blocking some websites.
```
{
  "Block": [
    "https://www.reddit.com/",
    "https://www.youtube.com/"
  ]
}
```
* Restart Enterprise and make sure the browser are blocked.

**Steps to reproduce**
1. At user level, set up a **WebsiteFilter** policy to allow some other websites (different from the ones in the company policy).
2. Restart the Enterprise client for the changes to take effect.

**Expected result**
* The company blocked webstire are still not accesible.

**Actual result**
* The company blocked webstire are now not accesible.

**Additional notes**
* This also occurs when at user level you set up a **WebsiteFilter** policy to only allow **some** of the sites blocked by the company level policy.

**Found in**
* Firefox Enterprise 149.0a1 (2026-02-21)

**Tested platforms**
* Affected platforms: All

**Preconditions**
* Have a **WebsiteFilter** policy set up at the company level, blocking some websites.
```
{
  "Block": [
    "https://www.reddit.com/",
    "https://www.youtube.com/"
  ]
}
```
* Restart Enterprise and make sure the websites are blocked.

**Steps to reproduce**
1. At the user level, set up a **WebsiteFilter** policy to allow some other websites (different from the ones in the company policy).
2. Restart the Enterprise client for the changes to take effect.

**Expected result**
* The company blocked websites are still not accessible.

**Actual result**
* The company blocked websites are now not accessible.

**Additional notes**
* This also occurs when, at user level you set up a **WebsiteFilter** policy to only allow **some** of the sites blocked by the company level policy.

**Found in**
* Firefox Enterprise 149.0a1 (2026-02-21)

**Tested platforms**
* Affected platforms: All

**Preconditions**
* Have a **WebsiteFilter** policy set up at the company level, blocking some websites.
```
{
  "Block": [
    "https://www.reddit.com/",
    "https://www.youtube.com/"
  ]
}
```
* Restart Enterprise and make sure the websites are blocked.

**Steps to reproduce**
1. At the user level, set up a **WebsiteFilter** policy to allow some other websites (different from the ones in the company policy).
2. Restart the Enterprise client for the changes to take effect.

**Expected result**
* The company blocked websites are still not accessible.

**Actual result**
* The company blocked websites are now accessible.

**Additional notes**
* This also occurs when, at user level you set up a **WebsiteFilter** policy to only allow **some** of the sites blocked by the company level policy.