1564198 - Firefox responses when compared with Chrome. (Still a white flash when using the "Black New Tab" extension)

Status: RESOLVED DUPLICATE of bug 1462070

(WebExtensions :: General, defect)

Description

[Pranav bhattarai]

Attachment: Screencast from 07-08-2019 11:19:46 PM.webm

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:67.0) Gecko/20100101 Firefox/67.0

Steps to reproduce:

1. Use Ubuntu 19.04 (or any Linux distro)
2. Install Firefox
3. Open any site, white page is there.
4. Open a new tab, white flash is there.

Even if u install, the extension to bypass this, it takes split 2 sec for the browser to give the extension that right (unless it chrome, which take 0 sec).

Actual results:

I have proof this, by the screencast video attachment down below.

Expected results:

As in the video, which clearly shows how slow is Firefox and its responses.
Because of this, extensions response are slow.

Leave alone the page/video loading...

Comment 1

[Darkspirit]

If your desktop theme is dark, Firefox 68 will adopt a dark color for new tabs, so they don't flash white: bug 1488384
Firefox 68 is released today: https://www.mozilla.org/firefox/new/
It's also configurable via pref: On about:config you could create a pref called ui.systemUsesDarkTheme. 0 is light, 1 is dark. But you might not need this.

Regarding performance, you could try out Firefox' new graphics engine:
Download Nightly. Open about:config, set gfx.webrender.all to true and restart Nightly.
If you find issues, please report them and tell that you've enabled WebRender. Thanks ;-)

Comment 2

[Darkspirit]

You might need to set browser.in-content.dark-mode to true, too. See bug 1488384 comment 37.
Please respond whether this fixes the problem for you or not. Thanks!

Comment 3

[Darkspirit]

https://addons.mozilla.org/en-US/firefox/addon/black-new-tab/ is used in the screencast.

Comment 4

[Pablo]

Tested on ubuntu 18.04 64bit and also in windows10 64bit and MacOS 10.13.6

• black new tab addon installed
• firefox dark theme enabled

Nightly version 70.0a1 > when creating a new tab, it flashes white
Beta version 69.0b4 > when creating a new tab, it flashes white
Release version 68 > when creating a new tab, it flashes white

with some of the settingss provided to help avoid issue in about:config, i was able to fix white flash but it flashed grey. So its not full fix.

Comment 5

[Pablo]

This issue could be duplicate of bugs:

https://bugzilla.mozilla.org/show_bug.cgi?id=1408122
https://bugzilla.mozilla.org/show_bug.cgi?id=1510567

But im not sure if its different, since on this one there is an addon installed for the issue to appear.