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New tab Page: Fetch and display thumbnails for sites visited in the current session

RESOLVED FIXED

Status

()

Firefox
Tabbed Browser
RESOLVED FIXED
5 years ago
5 years ago

People

(Reporter: Klaus Malorny, Unassigned)

Tracking

14 Branch
Points:
---
Dependency tree / graph

Firefox Tracking Flags

(Not tracked)

Details

(Reporter)

Description

5 years ago
When I open a new tab, the about:newtab page is shown with nine boxes referring to recently viewed pages. I had the problem that these boxes were always empty, i.e. no preview was shown. As this worked with a fresh profile, I used try-and-fail to discover the preference setting that was responsible for that. It turned out that the effect was caused by the Preferences -> Privacy tab -> Clear History when Nightly closes -> Settings... -> History/Cache is checked ("privacy.clearOnShutdown.cache" preference).

As I learned that the preview images are stored in the cache, it is reasonable that on the next start the images are no longer available, although this dependency will likely not be clear to a normal Firefox user. Nevertheless, I do not understand that for sites that I have visited in the current session, these preview images are not generated and/or stored and therefore are not displayed if I open a new tab later on in the same session. I consider this as a bug.

Comment 1

5 years ago
Duplicate or related to Bug 724408
(In reply to Klaus Malorny from comment #0)
> As I learned that the preview images are stored in the cache, it is
> reasonable that on the next start the images are no longer available,
> although this dependency will likely not be clear to a normal Firefox user.

Yes, this is bug 724408

(In reply to Klaus Malorny from comment #0)
>
> Nevertheless, I do not understand that for sites that I have visited in the
> current session, these preview images are not generated and/or stored and
> therefore are not displayed if I open a new tab later on in the same
> session. I consider this as a bug.

I remember this being discussed somewhere(email) and explained as expected (slowness when fetching thumbnails multiple times). I don't think there's an issue for this available anywhere though, so if you won't mind, I'll modify the title to reflect the second part of your post.
Blocks: 455553
OS: Linux → All
Hardware: x86_64 → All
Summary: "new tab page" preview images not generated if cache is cleared at the end of the session → New tab Page: Fetch and display thumbnails for sites visited in the current session
Will be fixed by bug 744388.
Depends on: 744388
Fixed by bug 744388.
Status: UNCONFIRMED → RESOLVED
Last Resolved: 5 years ago
Resolution: --- → FIXED
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