Guys, if you're going to recommend #Ironfox for #Android users moving away from #Firefox, at least warn them that they're most probably going to have a slow af experience with it, since they have disabled #JIT compilation for JavaScript by default. Not even Tor Browser does this! (baseline JIT only gets disabled at the "Safer" and "Safest" security levels)
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People who had willingly opted into sharing telemetry data by running Nightly or Beta builds of #Firefox to help Mozilla make a better product – those are the people who are blindsided by this change. We chose to opt in to share data with Mozilla, and the way that the data was used changed after we made our decision – and it wasn’t really clear that it was the case.
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Instead, Mozilla had successfully enabled data collection in its largest user population (the release branch of #Firefox) and was now able to use that data for #advertising purposes. That wasn’t how it was reported, that isn’t how we saw it - but that seems to be what happened.
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I looked on #reddit and the general tech press to see if the community had understood what is obvious today – enabling this setting by default allowed #Mozilla to further monetize the new tab page. I found afnan-khan’s sad submission of Mozilla’s privacy notice post. 13 net upvotes, 0 comments.
A massively consequential change with regards to data sharing in advertising, and the #Firefox community had nothing to say about it.
https://www.reddit.com/r/firefox/comments/736o33/improving_the_firefox_privacy_notice/
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It’s finally making sense. #Mozilla reduced granularity into the options for data collection in #Firefox, enabled additional data collection by default, and gave itself the ability to use this new data for advertising purposes. Users would have to opt out of this data collection for it not to be used for advertising purposes (a purpose that Mozilla in this iteration is not forthright about).
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Take a look at the #Firefox Preferences UI that Mozilla is telling us to toggle if we don’t want our data being processed for ads. I don’t see anything here says that this setting is about sharing data with advertisers. I have to go to the Privacy Notice to understand that. That doesn’t feel very upfront to me.
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Ever since this setting has existed, Mozilla contributors and employees have told people to enable it, in order to ensure that Mozilla developers have insight into how people use Firefox, to help make #Firefox better. While this post will prove my (naive) impression wrong, I had never seen anyone mention that this setting shared data with advertisers.
And yet, that is what Mozilla is telling us.
TechCrunch · Mozilla responds to backlash over new terms, saying it's not using people's data for AI | TechCrunch
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Sarah Perez 
After struggling for an hour to add a custom search engine to @mozillaofficial for an hour, I've finally managed to get it to work! 
They really don't want to make that process easy do they? 
#Mozilla warns #Firefox users to update browsers to the latest version to avoid facing disruption and security risks caused by the upcoming expiration of one of the company's #rootcertificates.
Mozilla certificate expires this Friday, March 14, 2025, and was used to sign content, including add-ons for various Mozilla projects and Firefox itself.
Users need to update to #Firefox128 (released in July 2024) or later and ESR 115.13 or later for 'Extended Support Release'.
https://www.bleepingcomputer.com/news/software/mozilla-warns-users-to-update-firefox-before-certificate-expires/
BleepingComputer · Mozilla warns users to update Firefox before certificate expires
Uh oh, trouble's brewing! 
Firefox users, listen up – your add-ons might be about to throw a tantrum! Sounds innocent enough, right? But trust me, an expired certificate can *totally* ruin your day.
Picture this: your password manager or ad blocker suddenly goes kaput. The culprit? An expired root certificate – basically Firefox's digital ID.
As a pentester, I see this stuff all the time: these "little things" are prime targets for attacks. An unpatched browser? That's like leaving your back door wide open. So, check your version ASAP (Menu -> Settings -> About Firefox). Anything older than version 128 or ESR 115.13 needs an urgent update! Tor Browser users: you're in the danger zone too! Good news for iOS/iPad users though, you can relax. 
Have you updated yet? And which add-ons are totally indispensable for you? Let me know in the comments!
How do I start a #firefox window so it remains isolated from the other firefox windows ?
It'd be to use it as if it was a separate application... Or am I better off using a different browser ?
Another reason (besides #GalenWeston) to avoid #ShoppersDrugMart is that their overengineered web site somehow doesn't work in #Firefox on #Linux. Had to use my phone* to renew prescriptions.
* For one script, Chrome on phone did it. For the other I had to make a phone call and use the voice-menu system. Web site can't renew if no repeats left. Phone will send request to doctor, but only after trying to sell an extra-cost service to renew without the doctor. It may be sleazy but it is stupid.
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 included data about advertising within Firefox’s New Tab page, along with a lot of other technical information about the installation of #Firefox. The Firefox preferences UI makes no mention of usage of this technical data for advertising purposes. https://www.quippd.com/writing/2025/03/12/mozilla-has-been-sharing-aggregated-firefox-data-with-advertisers-since-2017-when-it-enabled-telemetry-by-default.html
Youssuff Quips · Mozilla Has Likely Been Sharing Aggregated Firefox Data With Advertisers Since 2017, When it Enabled Telemetry by DefaultTL;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 included data about advertising within Firefox’s New Tab page, along with a lot of other technical information about the installation of Firefox. The Firefox preferences UI makes no mention of usage of this technical data for advertising purposes. Mozilla has also recently shared that they share data with their advertising partners “on a de-identified or aggregated basis”. Mozilla has given no indication that this is a new occurrence.
Mozilla warns of their own root certificate authority expiration this Friday. Recommends updating to Firefox ESR 115 or Firefox 128.
https://www.bleepingcomputer.com/news/software/mozilla-warns-users-to-update-firefox-before-certificate-expires/
- - -
Mozilla met en garde contre l'expiration de leur propre autorité de certification racine ce vendredi. Conseille la mise à jour vers Firefox ESR 115 ou Firefox 128.
// Article en anglais //
BleepingComputer · Mozilla warns users to update Firefox before certificate expires
As promised, here is an interview with @ryanleesipes from #Thunderbird, on the whole #Mozilla and #Firefox terms of use situation.
We talk about why this had to happen, how Thunderbird will handle their own Terms of Use, what's happening at Mozilla, and what's changing.
Had a look at my Pi Hole blocked queries list and there are entries for:
incoming.telemetry.mozilla.org
I thought I had disabled all the 'phone home' functionality in Firefox, but it appears to be still sending telemetry. about:telemetry claims it is disabled but there are several telemetry settings set to true in about:config. I don't know how to turn these off in settings, the only option seems to be to set:
toolkit.telemetry.server
to an empty address.
Mozilla repeatedly calls Firefox an independent browser in their defense of why Google should keep funding the development. Independent?
https://blog.mozilla.org/en/mozilla/internet-policy/proposed-remedies-browsers/
https://social.nikkasystems.com/@karlemilnikka/114127469613324001
blog.mozilla.orgMozilla’s response to proposed remedies in U.S. v. Google | The Mozilla BlogLast week the Department of Justice and some state attorneys general filed revised proposed remedies in the U.S. v. Google LLC search case. If the proposed