Firefox

If you have over 1000 tabs... learn how to use bookmarks instead. I don't understand how you think 1000+ tabs is a feasible way of organizing.

Have you tried increasing the size of your swap memory in windows? Otherwise known as "virtual memory". Depending on the speed of your drive and available space, you might be able to increase the vertual memory size to get more performance.

But what about using a page archiving service, even a self-hosted one, like Shiori. Shiori has an extension that can allow for single click page archiving right from the browser. The pages are saved as html files or txt files and it will create a readability version of the file which is just the text and images. You could then search the files and their contents using something like VS Code to search the whole directory where the files are stored. There are plenty of other ways to do that search once you have those archives, though. I think even Windows File Search will search the contents of a txt or html file stored on the device.

Shiori also has its own search, which is pretty fast, and searches the contents of the archives as well.

Why do you have so many tabs open?

Rather than try and force Firefox to deal with thousands of tabs, it’d be easier to use an add-on like SingleFile to download the tabs as self-contained HTML files. After that, you can search their contents using free tools like Agent Ransack or DocFetcher.

If you prefer to keep the data in your browser, then how about using a service like Instapaper that lets you save pages for reading/referencing later as well as search their contents?

i use auto tab discard and it works great

Zotero is a citation manager, with a firefox extension to save an article (but really, a tab) with one click.

It also has fulltext search. You can search snapshots of everything you save.

"But I can't save all my tabs at once"

(There are some solutions, but nothIng official)

Save as you go. Computers simply don't have enough ram for 2000 tabs.

Anyway, it also seems to be able to run javascript plugins, and I saw you have some experience with that.

It also has support for folders, so you can organize it a bit better than tabs work for that.

Sidebery (FOSS, MIT license) has several features that could be used to help you merge thousands of tabs into one window without choking out your memory usage, and generally makes it really easy to organize a massive amount of tabs. It would take several steps. First, you'd right-click the panel (the top-level organizational unit in Sidebery, above the tabs) on each window and select Save to bookmarks (example folder structure: selecting Bookmarks Toolbar/merge/ for a panel named panel1 would save the tabs under Bookmarks Toolbar/merge/panel1; click a folder twice in the selection dialog to expand it). Then you'd close that window and repeat with each window, being careful with the panel names so as not to overwrite any other window's tabs. Once you're down to one window, create an empty panel, right-click it, and select Restore from bookmarks. From this dialog, selecting the top-level folder that all the other bookmarked panels reside in (Bookmarks Toolbar/merge/ in this example) will import every tab from every window that was bookmarked, grouped by the window name.

When Sidebery imports a panel from bookmarks, the tabs are imported in an unloaded state, so they have basically no effect on memory until you actually click into them and load them. I can restore about 50 tabs per second from bookmarks without my system even slowing down, taking me from 0 to 500 tabs in about 10 seconds. It's not exactly a one-click option, but I wager it will be significantly faster and less prone to completely breaking than your current workflow, and a little easier to back up (even if window/session states get wonky, bookmarks sync pretty much instantly).

Once your tabs are all in the same window, you can load tabs you want loaded by selecting a bunch (ctrl-click, shift-click, etc., just like in file explorer) and refreshing them, presumably avoiding YouTube tabs (should probably download those with YT-DLP anyway if you want to keep them). Sidebery will actually limit how many tabs it reloads at once, so it'll never choke out your system by trying to instantly load a thousand of them (unlike if you select "open all in tabs" in Firefox's native bookmarks context menu... eurgh). Even if it isn't faster (though I suspect it is) the browser is at least usable while that's going on. I'm not sure how well this method preserves containers, mainly because I don't use them, so if you do, keep an eye on that if you test it out. All I know for sure is Sidebery supports reopening a tab in a new/different container because that's in the default context menu.

There's more time savings than just window merging and tab loading, there's the tree-style viewing, being able to collapse whole trees of tabs you aren't actively paying attention to, seeing the full titles of 30-40 tabs at a time, no more sideways scrolling, a built in search bar to filter shown tabs by title, fully customizable keyboard shortcuts and context menus... it's actually incredible how much this addon can do, and not only does it have a lot of settings and customization that should let you tailor its behavior to exactly how you want it, you can even sync its actual settings through Firefox! (just make sure to set your device name) Only thing it can't do is remove the tab strip to give you more vertical real estate, but Mozilla might be working on that.

I know what it's like to be attached to a cumbersome workflow. I hope this can help streamline things for you a bit and make life with ~2,000 tabs just a little less troublesome.

I am not sure what you’re working on but from your answers I’ve read you seems to need access to a lot of information with a few keystrokes, like searching for a keyword or tag.

In my opinion you are using the wrong tool for that. Ditch the browser and learn about the Zettelkasten way of working. It is really powerful for plenty of applications like science, studies, dev, or even the way I use it, author repository of ideas/concepts/stuff I need when writing a book.

You can do that with several software but I like obsidian for that (and because of all its plugins you could probably find something to automatically copy webpage content)

On the downside side :

• You’ll have to learn Zettelkasten, Obsidian etc
• Obviously do the work of writing (or copy pasting) your vault.

But on the plus size :

• You’ll have all the information you need at your fingertips, searchable with keywords, tags, associations etc.
• Everything is basic text MD files so it will still be readable by any text editor or terminal in the next century.
• You can have images, run code, do some mathlib, jupyter etc inside.
• Text is light, easy to store, backup and retrieve.
• If you do good enough you can have a satisfying visual representation of your new brain, kinda mindmap (which is also possible)

I tend to have ~10,000 tabs because I obsessively fail to clean up. But it never takes much memory or cpu, my PC isn't amazing yet Firefox is always lightning quick.

I've never used the discard or merge windows features though, I can see why those might cause issues. I assume these two functions just aren't optimised for so many tabs.

One addon I might recommend to help keep numbers down is Duplicate Tab Closer, which has options to specify how similar tabs can be to be considered duplicates, and also will detect across all open windows if desired.

I have no direct solution to you exact problem but your usage of tabs sounds like a nightmare.

A while back I found Omnivore which works like a charm if you want to "freeze" the contents of a website to read them later. You can also self host it if you like.

I took it a step further because I love Obsidian as personal knowledge management and I want to have everything in one place. There's a plugin to sync all your saved pages from Omnivore to Obsidian. In the template for it I then have my marked highlights, the links to the version in Omnivore and the original URL and also the whole content. So I have all of that in markdown which is really nice to work with.

Maybe that's a solution you too could be happy with.

I'm not going to tell you that you're managing your information wrong. I would physically die if I had ever more than 20 tabs (my ADHD couldn't handle it).

But I think you might be using the wrong tool. A browser (like Firefox) is not really designed as an information manager. It's primary purpose is navigating and visualizing web pages. So when you talk about "a few megabytes of text and images" thats not what your browser sees. Your browser handles more than just the text and images. It also handles fetching and prefetching, a browser history for every tab, a JS context and much much more.

What you want is some kind of personalized archiving system that processes websites into machine processable (ie searchable) structures. Firefox is not that. Maybe data hoarder communities will have the answers you seek.