Bugzilla

From https://www.reddit.com/r/firefox/comments/fh4lt5/favicon_not_stored_in_bookmarks_for_some_sites_in/

Steps to reproduce:

1. Navigate to https://www.melita.com
2. Bookmark page
3. Look at bookmark menu or recently bookmarked items in library toolbar icon

What happens:

The blue and white "m" favicon is not stored. 

Expected result:

The favicon is stored and displayed. 

```

2020-03-12T02:53:33: INFO : Narrowed integration regression window from [15b3e36e, 0d242323] (3 builds) to [daeb9d58, 0d242323] (2 builds) (~1 steps left)
2020-03-12T02:53:33: DEBUG : Starting merge handling...
2020-03-12T02:53:33: DEBUG : Using url: https://hg.mozilla.org/integration/autoland/json-pushes?changeset=0d24232377d97eb701f6666c3e3c2faba640ad8c&full=1
2020-03-12T02:53:34: DEBUG : Found commit message:
Bug 1600244 - Don't store favicons added after the initial page load. r=mossop

Icons added after the initial parsing are likely randomly generated to show badges,
thus they are not good for permanent storage, because they are transient and can
potentially flood the store.

Differential Revision: https://phabricator.services.mozilla.com/D55310

2020-03-12T02:53:34: DEBUG : Did not find a branch, checking all integration branches
2020-03-12T02:53:34: INFO : The bisection is done.
2020-03-12T02:53:34: INFO : Stopped
```

From https://www.reddit.com/r/firefox/comments/fh4lt5/favicon_not_stored_in_bookmarks_for_some_sites_in/

Steps to reproduce:

1. Navigate to https://www.melita.com
2. Bookmark page
3. Look at bookmark menu or recently bookmarked items in library toolbar icon

What happens:

The blue and white "m" favicon is not stored. 

Expected result:

The favicon is stored and displayed. This works in Chromium.

```

2020-03-12T02:53:33: INFO : Narrowed integration regression window from [15b3e36e, 0d242323] (3 builds) to [daeb9d58, 0d242323] (2 builds) (~1 steps left)
2020-03-12T02:53:33: DEBUG : Starting merge handling...
2020-03-12T02:53:33: DEBUG : Using url: https://hg.mozilla.org/integration/autoland/json-pushes?changeset=0d24232377d97eb701f6666c3e3c2faba640ad8c&full=1
2020-03-12T02:53:34: DEBUG : Found commit message:
Bug 1600244 - Don't store favicons added after the initial page load. r=mossop

Icons added after the initial parsing are likely randomly generated to show badges,
thus they are not good for permanent storage, because they are transient and can
potentially flood the store.

Differential Revision: https://phabricator.services.mozilla.com/D55310

2020-03-12T02:53:34: DEBUG : Did not find a branch, checking all integration branches
2020-03-12T02:53:34: INFO : The bisection is done.
2020-03-12T02:53:34: INFO : Stopped
```