[Bug]: Floorp soft locks when importing bookmark backup with lots of bookmarks

[LucasGGamerM]

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

When importing bookmarks from a firefox backup, floorp will show this message repeatedly: "Open the link fake-favicon-uri with System Handler" on a new small window, with two options: "Cancel" and "Open link"

Reproduction Steps

Export bookmarks from firefox as an html file, then import that same file on floorp.

Expected Behavior

Floorp won't soft lock when importing bookmarks.

Actual Behavior

Floorp spawns so many of the following windows that it is concerning.

Screenshots

This is in portuguese, but I believe I translated it okay-ish, I can try changing my language on floorp to get a better screenshot if necessary

Browser Version

11.23.1

Operating System

Fedora linux

Additional Context

The bookmarks import alright, it's just that it soft locks when doing so, forcing me to kill the browser if I want to use it again.