Trying out LibreWolf

Firefox LibreWolf — Published on .

Over the past week, I’ve been trying out LibreWolf as an alternative to mainline Firefox. I generally don’t hold a high opinion on any “modern” browser to begin with, but Firefox has been the least bad for quite some time. I used to actually like Firefox, but Mozilla has done their best to alienate their user base in search for profits, and is eventually left with neither. Their latest effort in digging their own grave is teaming up with Meta.

As such, I have been searching for an alternative (modern) browser for a long time. One major requirement that I’ve had is to have something like uMatrix. And obviously major features to block any and all advertisements, as these are a major detriment to your own mental health, and to the resources your machine uses. So, when someone recommended me LibreWolf, which is just a more user-respecting fork of Firefox, I didn’t hesitate to try it out.

The migration from Firefox to LibreWolf was remarkably simple. Since I use a small wrapper to launch Firefox with a specific profile directory, I just had to update that to launch LibreWolf instead. It kept all my settings, installed add-ons, and even open tabs. It seems that by default, however, it will use its own directory for configuration. If you want to try out LibreWolf and have a similar experience, you can just copy over your old Firefox configuration directory to a new location for use with LibreWolf. In hindsight, that probably would’ve been the safer route for me as well, but it already happened and it all went smooth, so no losses.

Now, while LibreWolf is more-or-less like Firefox, but less harmful to its own users, some of the tweaks made by the LibreWolf team may or may not be desired. I’ve taken note of any differences that could be conceived as issues. So far, they’re not breaking for me, but these may be of interest to you if you’re looking to try LibreWolf out as well.


By default, LibreWolf will not let you visit sites over HTTP. This is generally a very nice feature, but for some public hot-spots, this may cause issues. These are generally completely unencrypted, and LibreWolf will refuse to connect. The page presented instead will inform you that the page you’re trying to visit is unencrypted, and allow you to make a temporary exception. Not a very big issue, but it may be a little bit more annoying than you’re used to.


While all my add-ons were retained, I did want to get another add-on to redirect me away from YouTube, to use an Invidious instance. The page for installing add-ons itself seems to work fine, but upon clicking the Install button, and accepting the installation, LibreWolf throws an error that it simply failed to install anything. The Install button is nothing more than a fancy anchor with a link to the xpi file, so you can manually download the file and install the add-on manually through the Add-ons Manager.


I’ve been using Matrix for a while, as an atechnical-friendly, open source platform, for those unwilling to use IRC. Their recommended client, Element, is just another web page, because that’s sadly how most software is made these days. The chat itself works without a hitch, but there are two minor inconveniences compared to my regular Firefox setup.

The first one is that LibreWolf does not share my local timezone with the websites I visit. This causes timestamps to be off by one hour in the Element client. A very minor issue that I can easily live with.

The other is that the “default” icons, which is a capital letter with a colored background, don’t look so well. There’s some odd artifacts in the icons, which doesn’t seem to affect the letter shown. Since I mostly use the weechat-matrix plugin, it’s not really an issue. And for the few times I do use Element, it doesn’t bother me enough to consider it a real issue.


For consuming all sorts of media, I have Jellyfin set up for personal use. This worked fine in my regular Firefox setup, but does not seem to be willing to play any videos in LibreWolf. The console logs show some issues with websockets, and I’ve not been able to find a good way to work around this yet. For now, I’ll stick to using mpv to watch any content to deal with this issue.

All in all, I think LibreWolf is a pretty solid browser, and unless I discover something major to turn me off, I’ll keep using it for the foreseeable future.