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Notices

  1. Embed this notice
    Rich Felker (dalias@hachyderm.io)'s status on Wednesday, 23-Jul-2025 22:21:15 JST Rich Felker Rich Felker

    PSA: On stock mobile Firefox, you can bypass Mozilla's lockout of about:config using the alternate URL:

    chrome://geckoview/content/config.xhtml

    Note that "chrome" here has nothing to do with the Google browser. Google stole the name from what was previously the Mozilla-internal name for "browser UI components".

    In conversation about 3 months ago from hachyderm.io permalink
    • Embed this notice
      Rich Felker (dalias@hachyderm.io)'s status on Thursday, 24-Jul-2025 04:35:41 JST Rich Felker Rich Felker
      in reply to
      • draeath

      @draeath They admitted the reason was that they were worried normie newbs would change something that bricks their browser and that'd make Firefox look bad. 🙄

      In conversation about 3 months ago permalink
    • Embed this notice
      draeath (draeath@infosec.exchange)'s status on Thursday, 24-Jul-2025 04:35:42 JST draeath draeath
      in reply to

      @dalias I don't understand why they did it this way. The last time I saw words on it on bugzilla was something about the UI.

      That this special page exists and works says otherwise.

      In conversation about 3 months ago permalink
    • Embed this notice
      Brian Campbell (unlambda@hachyderm.io)'s status on Friday, 25-Jul-2025 02:12:18 JST Brian Campbell Brian Campbell
      in reply to

      @dalias Any settings you find useful to set here? I haven't noticed any annoying antifeatures on mobile firefox, but maybe there are some that I should turn off that I don't know about.

      In conversation about 3 months ago permalink
    • Embed this notice
      Rich Felker (dalias@hachyderm.io)'s status on Friday, 25-Jul-2025 02:44:56 JST Rich Felker Rich Felker
      in reply to
      • Brian Campbell

      @unlambda As an example, https://hachyderm.io/@dalias/114870743527476830 to fix referer leaks. There's all the phone-home stuff to nuke too. And I use firstparty-isolate, but that's a big hammer you want to understand before you do it (and it will effectively lose all your existing cookies/sitedata if you switch, by changing the scoping it's stored under).

      In conversation about 3 months ago permalink

      Attachments

      1. No result found on File_thumbnail lookup.
        Cassandrich (@dalias@hachyderm.io)
        from Cassandrich
        PSA: Some Mastodon instances are turning on sending HTTP Referers when you click on links. This is a "growth hacking at the expense of user privacy and consent" thing. If you don't want sites you click on informed about what instance you're using & clicking the link from, the Firefox setting to disable cross origin Referer headers is: network.http.referer.XOriginPolicy = 1 Source & further details: https://wiki.mozilla.org/Security/Referrer
    • Embed this notice
      Rich Felker (dalias@hachyderm.io)'s status on Friday, 25-Jul-2025 02:46:23 JST Rich Felker Rich Felker
      in reply to
      • Brian Campbell

      @unlambda You may also want to adjust scrollbar accessibility with stuff like https://hachyderm.io/@dalias/114773215748553833, albeit tuned a bit to mobile/touch.

      In conversation about 3 months ago permalink

      Attachments

      1. No result found on File_thumbnail lookup.
        Cassandrich (@dalias@hachyderm.io)
        from Cassandrich
        TIL in Firefox about:config: widget.gtk.overlay-scrollbars.enabled = false widget.non-native-theme.gtk.scrollbar.thumb-size = 1 widget.non-native-theme.scrollbar.style = 4 widget.non-native-theme.scrollbar.size.override = 16 Gets you scrollbars that are actually visible and clickable with the mouse.
    • Embed this notice
      Rich Felker (dalias@hachyderm.io)'s status on Saturday, 26-Jul-2025 03:39:30 JST Rich Felker Rich Felker
      in reply to
      • ltning

      @ltning There's no such thing as Firefox on iOS. The "Firefox" app is just using the OS browser engine but integrating with Mozilla Firefox account services for sharing your data between devices. It's not actually Firefox.

      In conversation about 3 months ago permalink
    • Embed this notice
      ltning (ltning@pleroma.anduin.net)'s status on Saturday, 26-Jul-2025 03:39:33 JST ltning ltning
      in reply to
      @dalias Not on iOS, apparently? Whatever I do it tries to look up "chrome" as a host name, rewriting it to remove the : . Even manually correcting it doesn't work :(
      In conversation about 3 months ago permalink
    • Embed this notice
      Rich Felker (dalias@hachyderm.io)'s status on Friday, 26-Sep-2025 10:09:21 JST Rich Felker Rich Felker
      in reply to
      • Nazo

      @nazokiyoubinbou If you're already using Firefox on Android, where there's no non-expert (maybe even no non-rooted?) way to transfer your profile from one app identity's storage to another's, switching to a different fork when you find you need about:config is kinda a non-starter. Unless you already have strong other reasons you want to and are willing to rebuild from scratch.

      In conversation about 23 days ago permalink
    • Embed this notice
      Nazo (nazokiyoubinbou@urusai.social)'s status on Friday, 26-Sep-2025 10:09:22 JST Nazo Nazo
      in reply to

      @dalias Though certainly better just to use Ironfox, this is great for those who are for whatever reason not doing so.

      In conversation about 23 days ago permalink
    • Embed this notice
      Rich Felker (dalias@hachyderm.io)'s status on Friday, 26-Sep-2025 10:26:47 JST Rich Felker Rich Felker
      in reply to
      • CatSalad🐈🥗 (D.Burch) :blobcatrainbow:

      Note: it looks like based on @catsalad's https://infosec.exchange/@catsalad/115267961741040364 Firefox is doing something nasty where it removes the "chrome://" prefix from anything you paste into the URL bar. So you need to manually re-type it after pasting. Or paste it into bookmark contents and use the bookmark, if that works.

      In conversation about 23 days ago permalink

      Attachments

      1. No result found on File_thumbnail lookup.
        CatSalad🐈🥗 (D.Burch) :blobcatrainbow: (@catsalad@infosec.exchange)
        from CatSalad🐈🥗 (D.Burch) :blobcatrainbow:
        For me, the normal paste of **`chrome://`** is always filtered out unless I type it manually or use a custom paste action from Heliboard's clip history. 🤷♀️
    • Embed this notice
      Rich Felker (dalias@hachyderm.io)'s status on Friday, 26-Sep-2025 10:43:28 JST Rich Felker Rich Felker
      in reply to
      • Zoe

      @ekg Nightly doesn't have it blocked afaik.

      In conversation about 23 days ago permalink
    • Embed this notice
      Zoe (ekg@social.librem.one)'s status on Friday, 26-Sep-2025 10:43:29 JST Zoe Zoe
      in reply to

      @dalias

      When you say stock do you exclude Nightly?, because I have no problem with accessing about:config.

      In conversation about 23 days ago permalink
    • Embed this notice
      jomo (jomo@mstdn.io)'s status on Friday, 26-Sep-2025 11:10:13 JST jomo jomo
      in reply to
      • CatSalad🐈🥗 (D.Burch) :blobcatrainbow:

      @dalias @catsalad interesting. When you copy it with a leading space included it is not filtered and works without having to remove the space.

      " chrome://geckoview/content/config.xhtml"

      You can then toggle the setting general.aboutConfig.enable to true to enable about:config again.

      The Fennec build (available on F-Droid) does not have this limitation, you can just visit about:config right away.

      In conversation about 23 days ago permalink
      Rich Felker repeated this.
    • Embed this notice
      The Turtle (the_turtle@mastodon.sdf.org)'s status on Friday, 26-Sep-2025 11:43:47 JST The Turtle The Turtle
      in reply to

      @dalias interesting... I run the beta on mine and it reports that general.aboutConfig.enabled is "true," but trying to then go to about:config it rejects as an invalid protocol.

      Mozilla, stop trying to be Apple. If I wanna fuck up my browser, you WILL NOT stand in my way.

      And this is the beta, mind you!

      In conversation about 23 days ago permalink
    • Embed this notice
      Nazo (nazokiyoubinbou@urusai.social)'s status on Friday, 26-Sep-2025 13:28:05 JST Nazo Nazo
      in reply to

      @dalias I feel like having to log into a few sites is definitely worth the improved security/privacy/etc.

      But I'm sure there are more extreme reasons some people may not be making the switch.

      Just, I worry the main reason is most just don't know it exists...

      In conversation about 23 days ago permalink
    • Embed this notice
      Rich Felker (dalias@hachyderm.io)'s status on Friday, 26-Sep-2025 13:28:05 JST Rich Felker Rich Felker
      in reply to
      • Nazo

      @nazokiyoubinbou It's not just logging in but reconstructing your configuration, set of extensions & configuration for them, saved credentials and form data, etc.

      Yes it's probably worth it if you have a strong understanding of which fork you can trust to work for you and to be around and up-to-date long-term.

      This is not the situation most people are in the first time they encounter something shitty stock Android Firefox is doing, like blocking about:config.

      In conversation about 23 days ago permalink
    • Embed this notice
      Turre (turre@mementomori.social)'s status on Friday, 26-Sep-2025 19:42:57 JST Turre Turre
      in reply to
      • jomo
      • CatSalad🐈🥗 (D.Burch) :blobcatrainbow:

      @jomo @dalias @catsalad To add to the insult of this about:config farce, that aboutConfig flag appears to get reset on each Firefox update, so it's less useful than it initially seems.

      Bookmarking the chrome:// based URL ftw.

      In conversation about 22 days ago permalink
    • Embed this notice
      Rich Felker (dalias@hachyderm.io)'s status on Sunday, 28-Sep-2025 21:24:53 JST Rich Felker Rich Felker
      in reply to
      • masukomi
      • CatSalad🐈🥗 (D.Burch) :blobcatrainbow:

      @masukomi @catsalad Mechanically about:config is an alias for the chrome:// thing. They probably just forgot to lock the latter or didn't care to because it wasn't widely known.

      They locked about:config because changing things can "brick" your browser and they were worried that would "make Firefox look bad". 🙄

      In conversation about 20 days ago permalink
    • Embed this notice
      masukomi (masukomi@connectified.com)'s status on Sunday, 28-Sep-2025 21:24:54 JST masukomi masukomi
      in reply to
      • CatSalad🐈🥗 (D.Burch) :blobcatrainbow:

      @dalias @catsalad why did they lock about:config? And why do that bs with chrome:// ?

      Like seriously. What am i missing here? Why bother having a dev do this work?

      In conversation about 20 days ago permalink

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