If you prefer having many tabs open and want to group or stack them, there are several browsers and extensions that can help you manage your tabs effectively.

For browsers, Vivaldi is highly recommended due to its integrated tab management features, such as lazy loading of tabs, hibernating background tabs, and tab stacking. It also allows you to save your open tabs in a session and tile tabs that you need side by side[1][3][9]. Opera is another browser that is known for its advanced inbuilt tabs management features, including a feature known as Opera One workspace, which can handle many tabs without any issues[3].

If you prefer to stick with Firefox, there are several extensions that can enhance your tab management experience:

  1. Workona: This extension is designed to help you organize your tabs and documents by project. It also auto-saves tabs so you won't lose your work. Workona also offers a tab suspender for Firefox, which allows you to auto-suspend tabs or pause them manually to reduce memory usage[2][7][9].

  2. Simple Tab Groups: This extension allows you to create, modify, and quickly change tab groups. It also supports multiple windows and integrates with Firefox Multi-Account Containers[6][8][10].

  3. Tab Session Manager: This extension allows you to save and restore the state of windows and tabs. It also supports automatic saving and cloud sync[4].

  4. Tab Center Redux: This extension features a vertical listing of your tabs on the left side of your browser window, allowing you to organize your work from there[2].

  5. OneTab: This extension 'bookmarks' tabs and saves them in an editable list, which can be useful for clearing tabs to have a fresh browser when working[6].

  6. Auto Tab Discard: This extension increases browser speed and reduces memory load when you have numerous open tabs[4].

Remember to choose the browser or extension that best suits your needs and preferences.

Citations: [1] https://www.reddit.com/r/browsers/comments/t59s7k/best_browser_for_hundreds_upon_hundreds_of_tabs/ [2] https://workona.com/reviews/best-tab-managers-for-firefox/ [3] https://windowsreport.com/best-browsers-tab-management/ [4] https://addons.mozilla.org/en-US/firefox/collections/4757633/tab-organizers/ [5] https://windowsreport.com/best-browser-multiple-tabs/ [6] https://www.reddit.com/r/firefox/comments/vsm2bu/whats_a_good_addon_for_tab_management/ [7] https://www.zdnet.com/home-and-office/work-life/too-many-browser-tabs-this-favorite-extension-is-the-perfect-solution/ [8] https://www.techrepublic.com/article/firefox-finally-tab-management-add-on-worth-using/ [9] https://vivaldi.com/blog/manage-too-many-browser-tabs-chrome-firefox-brave-vivaldi/ [10] https://addons.mozilla.org/en-US/firefox/addon/simple-tab-groups/ [11] https://www.techrepublic.com/article/the-best-browser-when-using-a-lot-of-tabs-isnt-firefox/ [12] https://www.groovypost.com/howto/5-extensions-to-organize-your-firefox-tabs-quickly-and-easily/ [13] https://workona.com/reviews/best-tab-manager-extensions-for-chrome/ [14] https://www.freshtechtips.com/2022/01/firefox-tab-management.html?m=1