Basically what the title says. As far as tech knowledge goes, I am probably a 3.5 or 4 out of 10. Hence the ELI5 request.

I am a Firefox browser user, both in my Android phone as well as Windows device - for the same reason as many others ditched Chrome and chose FF (degoogle and all).

Recently I came to know about Fission being offered in FF nightly. It is said that site isolation with fission is far from ready, and this is probably one of the areas where chromium beats it. I read somewhere that FF fission uses multiple processes to separate sites, but they are not really "isolated processes".

All these is surely not making me less confused about how exactly sandboxing/fission/FPI/TCP differ as far as Firefox is considered, so thought of asking this here.

Posting this in the ELI5 community might've been more "correct", but my question being specifically around Firefox, I thought the chances of getting a better answer is higher here.

Apologies if not, and thanks in advan

Estive a testar os separadores verticais no @firefox e acho que isto não é para mim. Voltar ao estilo antigo

Only finding old ways and either Im too untalented or it become obsolete (as someone mentioned in an old comment there)

Summary

We have rewritten over 600 JavaScript event handlers to mitigate XSS and other injection attacks in the main Firefox user interface. This mitigation will ship in Firefox 138. However, blocking the execution of scripts in the parent process is not the end - we will expand this technique to other contexts in the near future. There is still more work to do as the UI requires JavaScript APIs with a high level of privileges. However: We still eliminated a whole class of attacks, significantly raising the bar for attackers to exploit Firefox. In fact, we hopefully just broke someone’s exploit chain.

In light of Mozilla’s recent policy changes, we no longer feel assured that Firefox aligns with our commitment to protect your privacy. This prompted us to revisit the choice of default web browser in Zorin OS 17.3.

Estou a testar os separadores verticais no @firefox e sinto-me completamente perdido. Uma simples alteração e o mundo parece ao contrário...

https://www.mozilla.org/en-US/firefox/137.0/releasenotes/

Edit: I found it it occurred somehow when remapping modifiers with my keyd configuration. I remapped it to CTRL ALT ] and it works now.

It says on https://support.mozilla.org/en-US/kb/about-picture-picture-firefox#w_keyboard-shortcuts that the hotkey to toggle PiP is CTRL Shift ]. When I play a video it shows the PiP button, but the hotkey doesn't work. The other PiP keys like seeking and volume work. I'm on Fedora 41 with KDE 6.3.3 & Wayland.

Crossposted from https://www.reddit.com/r/firefox/comments/1jd5nlk/convert_chrome_extension_to_firefox_addon/

There are a number of FF versions and forks that this will work with, but I used FF Beta (I've also confirmed it to work with FF Nightly & Iceraven. Conversely, it did not work for Mull and iirc, it cannot be done using FF Standard Release/Stable)

• Step 1 - have the CRX file for the Chrome extension handy. There are countless Chrome extensions and FF add-ons that will extract it for you.

• Step 2 - install the CRX Installer add-on (or get the XPI file by whatever means) →Extensions→Click CRX Installer→click "Browse"→ select the CRX file*, which should result in the creation of an XPI file.

• Step 3 - go to Settings→About Firefox Beta (or Nightly, Iceraven, etc)→Tap the logo at the top of the "About" section until you see a toast message saying "Debug Menu enabled" (I think 5 taps)

• Step 4 - navigate to "

For me, it's ublock origin, libredirect, and Dark Background Light Text

edit: woah, that’s a lot of addons! I’ll have to check those out at some point!

By Joe Brockmeier
March 4, 2025

Mozilla's actions have been rubbing many Firefox fans the wrong way as of late, and inspiring them to look for alternatives. There are many choices for users who are looking for a browser that isn't part of the Chrome monoculture but is full-featured and suitable for day-to-day use. For those who are willing to stay in the Firefox "family" there are a number of good options that have taken vastly different approaches. This includes GNU IceCat, Floorp, LibreWolf, and Zen.

If you're interested, you should read the whole article, but below are the summaries of the four tested browsers.

IceCat is probably a good choice for folks who are more concerned with the free software ethos and privacy than with functionality.

Overall, Floorp is an interesting project with some nice enhancements to the Firefox UI. However, the development roadmap seems a bit more haphazard than I would like—switching back and fort

What os happenning!!!! ? Is this the licensing stuff I've not been following !? The internet is horrible, every page is a flashbang and the ads omg the ads. The internet is dying!

On March 14, 2025, a root certificate used to verify signed content and add-ons for various Mozilla projects, including Firefox, will expire. Without updating to Firefox version 128 or higher (or ESR 115.13+ for ESR users, including Windows 7/8/8.1 and macOS 10.12–10.14 users), this expiration may cause significant issues with add-ons, content signing and DRM-protected media playback.

If you don’t update, Firefox features that rely on remote updates will stop working, and your installed add-ons will be disabled. DRM-protected content, such as streaming services, may also stop playing due to failed updates. Additionally, systems dependent on content verification could stop functioning properly.

TL;DR: With Firefox 56, Mozilla combined Firefox Health Report and Telemetry data into a single setting called “technical and interaction data”, which was then enabled by default. This data was then shared with advertising partners on a de-identified or aggregated basis.