[Bug]: The tab bar malfunctioned

[universish]

Pre-Submission Checklist

• [X] I have checked the existing/closed issues to ensure this issue has not already been reported.
• [X] I am using the latest supported version of the browser.
• [X] I have tried disabling all browser extensions/add-ons to rule out interference from these.
• [X] I have tried clearing the browser cache and cookies.
• [X] I have checked with a new profile and the issue still occurs.
• [X] I have provided detailed step-by-step instructions on how to reproduce the issue.
• [X] I have included relevant screenshots or console outputs.
• [X] I have checked that this problem is not occurring in the latest version of Firefox ESR.
• [X] This issue is specific to this browser and does not occur in other browsers.

Bug Summary

The vertical tab bar was active. it was visible in the left panel. the collapse vertical tab bar feature was active. When I opened the 50MB .svg file with the floorp browser, the tab bar malfunctioned. It moved to the right side of the window. It shows in the right panel even though the show in right panel feature is disabled. I activated the horizontal tab bar. the horizontal tab didn't work either. I activated the vertical tab again. the same problem persisted.

Reproduction Steps

1. When I opened the 50MB .svg file with the floorp browser, the tab bar malfunctioned.
2. It moved to the right side of the window.
3. It shows in the right panel even though the show in right panel feature is disabled.
4. I activated the horizontal tab bar. the horizontal tab didn't work either.
5. I activated the vertical tab again. the same problem persisted.

Expected Behavior

It shouldn't break on its own. And even if it does, changing the settings should fix it. There should also be a reset to defaults feature in the settings. There should be an option to reset to defaults for each setting heading separately. At least there should be a reset to defaults for all settings.

Actual Behavior

Read the article above.

Screenshots

no

Browser Version

11.19.1

Operating System

Windows 11

Additional Context

No response