Cristian Fogel [:cfogel] Reporter
	Description • 6 years ago

[Affected versions]:
- 62.0b18, 63.0a1 (2018-08-20) 

[Affected platforms]:
- Win 10x64, Ubuntu 18.04LTS, macOS 10.11

[Steps to reproduce]:
- have at least 2 search engines added in the top-sites section
1. Launch Firefox;
2. Open the new-tab page;
3. Click on any  search engine;
4. Middle click on any other search engine.

[Expected result]:
- search and shortcut is performed with the desired search-engine;
- the search engine mentioned at step 4 is highlighted only;

[Actual result]:
- the search engine from step 3 is highlighted on middle-click

[Regression range]:
- mozregression bisection points out to:
https://bugzilla.mozilla.org/show_bug.cgi?id=1481590

- pushlog url: 
https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=7a3737f257d51c78110bbab40017dbb593410518&tochange=d0d2e0f4b33cd28bc05c353c185873256f7f926e
- last good: 2018-08-15 02:59:42.528000
- first bad: 2018-08-15 04:05:24.898000

[Additional notes]:
- attached recording with the issue

	Mike Taylor [:miketaylr]
	Comment 1 • 6 years ago

Tim, how important is this regression? Thanks!

	Tim Spurway [:tspurway]
	Comment 2 • 6 years ago

Hey Mike, 

As someone without a middle mouse button, i dunno!

I'm marking it 'uiwanted' and we will get an answer soon, though it's safe to say we can't get anything done for 62.

	Andrei Oprea [:andreio]
	Comment 3 • 6 years ago

I can confirm the issue but it does not seem important enough to address.
The functionality is correct: the search keyword you click is added in the address bar.
The glitch is only visual and clicking on a topsite with the mouse wheels seems like an accidental action not an intended one.