New Tab override via extension not working

[petemill]

Description

Extensions are able to override a bult-in page such as New Tab page https://developer.chrome.com/extensions/override
This works in Chrome but not in Brave 0.55

Steps to Reproduce

1. Install momentum extension from https://chrome.google.com/webstore/detail/momentum/laookkfknpbbblfpciffpaejjkokdgca/related?hl=en
2. Open New Tab

Actual result:

Brave's default New Tab page is shown

Expected result:

Momentum's New Tab page is shown

Reproduces how often:

Always

Brave version (about:brave info)

0.55.1 Chromium: 70.0.3528.4 (Official Build) dev (64-bit)

Additional

Brave policy is to allow these overrides, so this is a bug

[eljuno]

+1 from community (likely with other extension) https://community.brave.com/t/home-page-new-tab-page/32776?u=eljuno

[ngurney]

+1 for me as well. Looking to use the Tabliss extention which I assume is caused by the same issue.

[srirambv]

+1 from https://community.brave.com/t/custom-new-tab-page-settings/34468

[Rejinderi]

+1, need this for Refind new tab before i can totally put chrome aside.

[srirambv]

+1 from @krono via #1771

[andrewcking]

I think #960 will accomplish this ("New Tab Page Shows")

[eljuno]

+1 from community https://community.brave.com/t/momentum-custom-new-tab-doesnt-work/35847?u=eljuno

[srirambv]

+1 from @krmbzds via #1872

[KyleConstantin]

+1 this is a major issue for me converting fully over to brave. please fix!

[krmbzds]

Why not move new tab feature to a Brave New Tab extension?

Advantages:

• Better Chromium parity
• More plugin compatibility
• Less maintenance (?)

And anyone who doesn't want it would be free to disable or substitute it.

[bsclifton]

cc: @rebron for prioritization

[bbondy]

I put it to P2 because there's a lot of community asks for it. We can do this soon.

[Brave-Matt]

FWIW: This is easily one of the most frequently requested/mentioned features users ask for. Both the ability to override NTP with extensions and for Brave NTP redesign.
While I clearly understand the potential workload involved in redesigning our own new tab page/dashboard, I think its priority merits reconsideration. Users should obviously be able to use any of the available extensions if they want but I don't think installing 3p extensions is ideal.

[bbondy]

@Brave-Matt this is a different issue than new tab redesign and this is already marked with top priority. It'll be done soon. Reconsidering priority wouldn't help since it's already marked with top priority. P1 is reserved for something we need to do a chemspill release for.

[bbondy]

Fixed here, in-review now:
brave/brave-core#933

[manitaggarwal]

Still not working for me..

[bbondy]

@manitaggarwal are you using 0.57.x? It'll be released tomorrow but you can get an early RC on github already.

[bbondy]

Oops sorry this is only on 0.58.x so better to grab a Dev channel build from the releases page on this repo.

[manitaggarwal]

@bbondy I am on 0.56, I'll wait for this fix to be merged into stable channel... Thanks for the info.. 😄

[xverz]

Can't wait for this to be implemented to my favorite browser.

[srirambv]

Verification passed on

Brave	0.58.11 Chromium: 71.0.3578.80 (Official Build) beta(64-bit)
Revision	2ac50e7249fbd55e6f517a28131605c9fb9fe897-refs/branch-heads/3578@{#860}
OS	Linux

• 

Verification passed on

Brave	0.58.11 Chromium: 71.0.3578.80 (Official Build) beta (64-bit)
Revision	2ac50e7249fbd55e6f517a28131605c9fb9fe897-refs/branch-heads/3578@{#860}
OS	Windows

• Verified the STR from description

Verified passed with

Brave	0.58.12 Chromium: 71.0.3578.80 (Official Build) (64-bit)
Revision	2ac50e7249fbd55e6f517a28131605c9fb9fe897-refs/branch-heads/3578@{#860}
OS	Mac OS X

• Verified STR from description
  

[Zelrain]

Need to be able to customize new tab page! You already know!

[dogancelik]

Brave's default New Tab extension overrides my Chrome theme's wallpaper!