[Affected platforms]:

• win 10
• macOS 10.14
• ubuntu 18.04

[Steps to reproduce]:

1. Launch Firefox.
2. Navigate to about:preferences#privacy, scroll down to the Certificates section.
3. Click View Certificates button.
4. Select the first certificate and click the 'View...' button.
5. Switch back to the about:preferences tab, and click the 'View...' button again, for the same certificate.

[Expected result]:

• The user is redirected to the already open tab of that certificate.

[Actual result]:

• A new about:certificate tab is opened.

[Regression range]:

• This is not a regression

[Additional notes]:

• This issue occurs if the about:certificate page is opened from the page information panel of the a website.

Changing to enhancement, as I don't think this situation will come up terribly often.

Push with failures: https://treeherder.mozilla.org/#/jobs?repo=autoland&group_state=expanded&resultStatus=testfailed%2Cbusted%2Cexception&searchStr=chrome&fromchange=e9d1379c65f5bf7c7682ed49a72e2922c4026009&tochange=007007b06317aba21a5d445dbc38dd6fee0811b0&selectedJob=277725813

Failure log: https://treeherder.mozilla.org/logviewer.html#?job_id=277726662&repo=autoland
https://treeherder.mozilla.org/logviewer.html#?job_id=277750295&repo=autoland

Backout link: https://hg.mozilla.org/integration/autoland/rev/af28127350c3414debefb0489beecfc85b6730b1

I'll take a look asap

When I run those tests locally they pass (I think they failed just in windows?), I'm not sure what may be wrong with these changes.
Johann, can you give me any insights on how to solve this issues please?

The test log shows TypeError: window.switchToTabHavingURI is not a function on viewCert@chrome://browser/content/pageinfo/security.js:42:14, you probably need to use Services.wm.getMostRecentWindow("navigator:browser"); to get the actual browser window (as opposed to the pageinfo window) here as well.

Thank you! I got lost on the test log but now I know where to read

https://hg.mozilla.org/mozilla-central/rev/a1fc592ffaf4

Since the status are different for nightly and release, what's the status for beta?
For more information, please visit auto_nag documentation.

Reproduced the initial issue using Release version 72.0.1 (Build id: 20200107212822).
Verified - Fixed in latest Nightly build 74.0a1 (Build id: 20200108215606) and latest Beta 73.0b2 (Build id: 20200107212705) using Windows 10, Mac OS 10.14 and Ubuntu 18.04.