[seba_dos1]

Edge is not free. I wouldn't seriously consider using a non-free application for something as essential as everyday web browsing.

You can't really have usable vertical tabs in Chromium via plugins either, unless you're content with wasting a lot of horizontal space for an ugly sidebar and vertical space for uselessly duplicated tab bar.

Firefox is the only actual choice I'm aware about.

[prange]

> I wouldn't seriously consider using a non-free application for something as essential as everyday web browsing.

Why? Are you considering forking Firefox?

[prange]

For clarification - if you either contribute code or money to Firefox, you are clearly supporting the existence of a free browser.

I don’t see how just using it does. So if you aren’t contributing to it you may as well use the browser with the best feature set for your use case.

[sfink]

Using Firefox definitely supports the existence of a free browser. Loss of market share is the #1 threat to the continued existence of a free browser. Beyond the obvious (if a tree falls in a forest, crushing the last copy of the code for a browser that has zero users, then was it a browser at all?):

    lower market share =>
    nobody testing against the free browser or fixing site breakage =>
    quirks (bugs, underdefined specifications, nonstandard features) of other browsers becoming required for a functional Web =>
    free browser is no longer a browser of the actual Web.

[prange]

I agree that submitting bug reports or patches is an important contribution.

I don’t see how that relates to market share, since regular users won’t do that.

[ipaddr]

Marketshare is important, default search engine revenue is based on usage.

[prange]

It’s not really ‘free’ if it has to produce ad revenue.

[seba_dos1]

It is irrelevant to it being free.

[prange]

No it isn’t. The direction of development is controlled by the need for funding.