Multiple Rows of Tabs in Firefox - Increase Tab Space

Managing Numerous Tabs in Firefox with Multi-Row Display
For dedicated Firefox users who frequently navigate with a large number of open tabs, managing this can become challenging. After evaluating various solutions, utilizing multiple rows for tab display has proven to be the most effective method.
This functionality is enabled through the Tab Mix Plus extension. It is assumed that this extension is already installed in your Firefox browser.
Configuring Multi-Row Tabs
Access the Tab Mix Plus options by navigating to the Tools menu and selecting the options dialog. Within the options window, select the "Display" tab.
Ensure the "Tab Bar" sub-tab is currently selected. Locate the setting labeled "When tabs don't fit width" and change its value to "Multi-row".
Once this adjustment is made, Firefox will automatically begin displaying tabs in multiple rows when the available width is insufficient to accommodate them all on a single row.
This provides a more organized and efficient way to manage a substantial number of simultaneously open web pages.
It's worth noting that the example display resolution shown is not typical for most users.