Support for columns resizing was implemented in bug 1358414 - currently hidden behind a pref: devtools.netmonitor.features.resizeColumns

We should turn the pref on at the beginning of the 68 release cycle.

Honza

https://hg.mozilla.org/mozilla-central/rev/27e9ef4df5af

Comment on attachment 9052373 [details]
Bug 1533764 - enable pref for column resizer in Nightly; r=Honza

Beta/Release Uplift Approval Request

• Feature/Bug causing the regression: None
• User impact if declined: Network panel doesn't have resizable columns
• Is this code covered by automated tests?: Yes
• Has the fix been verified in Nightly?: Yes
• Needs manual test from QE?: No
• If yes, steps to reproduce:
• List of other uplifts needed: None
• Risk to taking this patch: Low
• Why is the change risky/not risky? (and alternatives if risky): It's been tested in 68 Nightly since the beginning of the cycle and no bug reports reported.
• String changes made/needed:

Comment on attachment 9052373 [details]
Bug 1533764 - enable pref for column resizer in Nightly; r=Honza

We usually don't activate new features in beta but given that this is limited to devtools panels, that QA already tested it in beta 3 (https://bugzilla.mozilla.org/show_bug.cgi?id=1358414#c94), that the code landed during the 67 cycle and that the pref was activated just after the merge to 68 with no reported regression over 4 weeks on Nightly and that this is a highly requested chome-parity feature for our devtools with multiple duplicates to bug 1358414, I am going to take it. Uplift approved for 67 beta 12.

Thanks!

Honza

https://hg.mozilla.org/releases/mozilla-beta/rev/09e4cb94ed9e