1969785 - The "Show sidebars" button reverts to Bookmarks at every Firefox restart.

Status: RESOLVED DUPLICATE of bug 1922777

(Firefox :: Sidebar, defect, P2)

Description

[sitalk]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:139.0) Gecko/20100101 Firefox/139.0

Steps to reproduce:

Clicked the "Show sidebars" toolbar button after a Firefox restart.

Actual results:

The Bookmarks sidebar opened.

Expected results:

The button should show the last opened sidebar, for example the History.
As it was on previous versions of Firefox.

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Firefox::Sidebar' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 3

[Alexandru Trif, Desktop Test Engineering [:atrif]]

Hello! I have performed a regression range on Windows 10 x64 and obtained the following push log: https://hg-edge.mozilla.org/integration/autoland/pushloghtml?fromchange=79d1a7890fc2dd1696919ae72559afcbdca6efaf&tochange=deb757393ed3a48a09c830ee109b3a4b2eb758e8.
I have used the following steps:

1. I have created a profile on the latest Nightly with the sidebar button added to the toolbar and the sidebar panel set to History.
2. I have closed the sidebar and used this profile in mozregression with the reuse option.
3. On each Firefox build, I have opened the sidebar, confirmed the panel, set to History again, clicked a history option, closed the seidebar, and restarted Firefox (Ctrl+ Alt + R).
4. After restart, I opened Sidebar again from the button and confirmed it's state (If it was on Bookmarks -> Bad build, on History -> good build)

Possible regressor: bug 1921536.

Note: For some reason, this is very confusing... Using Mozregression, I had the expected behavior on good builds, after a Firefox restart, opening the sidebar will open History as chosen in the previous session. However, if I download Firefox 137.0, which is not affected, I can still reproduce this issue after a restart... Please let me know if the regressor is not accurate and another regression range is needed.

Comment 4

[BugBot [:suhaib / :marco/ :calixte]]

Set release status flags based on info from the regressing bug 1921536

:sfoster, since you are the author of the regressor, bug 1921536, could you take a look?

For more information, please visit BugBot documentation.

Comment 6

[Sam Foster [:sfoster] (he/him)]

Clearing my need-info, this was fixed in bug 1922777.