I-Firefox Community Forum

Hello,

Based on this previous post https://support.mozilla.org/en-US/questions/1195138

I have turned off mousebutton.4th.enabled and mousebutton.5th.enabled

But I wish to bind these buttons to previous tab / next tab How can I accomplish this ? Thanks

I only use Firefox to play two browser games that both use the 1-5 keys as an alternative to clicking the mouse. Accidentally clicking Ctrl and switching tabs out of nowhere is becoming a really annoying problem, but I don't see any way to just turn off shortcuts and hotkeys like other the other browsers I use. Is there any way to do this? Even a specific extension that makes the Crtl button do nothing would help, the one I was recommended won't download due to a "corruption".

I am trying to disable the text segmentation behavior in latest Firefox(v151), but I have encountered an issue where changing the preference in [about:config] does not seem to have any effect.

Details:

   Target Preference:  intl.icu4x.segmenter.enabled
   Current Setting:       false

   Problem: 
   Even after setting this to false (and restarting the browser), the text segmentation behavior (such as word selection logic) remains unchanged and appears to still be using the ICU4X engine.

   Reference:
   https://support.mozilla.org/en-US/questions/1440483#answer-1638092

I would like to know:

  1.  Has this preference been deprecated or hardcoded to true in recent versions of Firefox?

   2. Is there any other way to disable the ICU4X-based segmenter or revert to the previous segmentation logic?

   3. If this is a known change, is there an alternative preference to adjust how word selection handles specific languages (e.g., Japanese)?

I am using the latest version of Firefox. Any insights or workarounds would be greatly appreciated. Thank you in advance for your help!

I REALLY don't want to see prompts like this ... when FF upgrades to a newer release. I postponed clicking on adding this application since I really didn't know what it as going to do, or how to remove it once done. The little 'i' in the red circle did nothing. So - I finally clicked on it to make it go away. Not hat I call a very seamless upgrade.

Over the past few updates, I’ve noticed an issue with Firefox where it no longer restores my previous session when reopening the browser.

I normally keep four tabs pinned and about five additional tabs open for browsing and work. In the past, I could simply click the X to close Firefox, and when I reopened it, all my tabs that are pinned and unpinned would automatically come back. Recently, this stopped happening. Now, if I close Firefox, it opens with a fresh window instead of restoring my previous tabs.

I’ve already checked the setting under General/Startup, and Open previous windows and tabs is enabled. Because of this issue, I avoid closing Firefox entirely, since rebuilding all my tabs each time has become a hassle.

Is there a way to fix this? Any suggestions would be appreciated.

Thanks :)

Is there a way to make the URL high lighting of the domain more obvious? I find that most people can barely see the highlighting and I'd like to make it obvious (bolder and red, or highlighted in yellow, for instance.)

Can this be done via userchrome.css?

Thanks,

Thane

It was nice when FF was simple to use....unimcumbered with all the options...like the latest...profiles.

Why? It's getting to be as complicated as E and C..you don't need all those options - that's why I use FF.

Get rid, or allow the user, to pick and choose, and dump the unwanted stuff from cluttering the tool bar and other options. Just a suggestion that can be made to FF any longer. Use to be they'd welcome feedback.

I read online that Firefox is planning on implementing AI features. Given the track record of AI in other browsers leaking private information, bogging down connectivity, and generally being a nuisance towards users, I was wondering if there will be opt out features in future updates? Or know of forum threads that will update with tutorials on how to turn off AI features?

If not, does anyone on this forum have recommendations for no-ai browsers?

Create custom DNS providers list to "DNS over HTTPS" "Choose provider" menu (Settings > Privacy & Security - DNS over HTTPS) This can be applied to any Mozilla based browser.

1. Write about:config in url-bar and press [Enter].

2. In the "Search preference name" box Find the "doh-rollout.provider-list" value.

2.a. Create it if not exist by choosing: "String" value and press "+" (add). 2.b. On the right side of the value, Write the '*one string code'. - (if a code already exist, select all code [Ctrl+A] & copy [Ctrl+C] and paste [Ctrl+V] in a notepad and Save it so to keep backup with the previous setting.)

The '*one string code': [ { "UIName": "Cloudflare: Mozilla uri: (https://mozilla.cloudflare-dns.com/dns-query)",

   "uri": "https://mozilla.cloudflare-dns.com/dns-query"  },    

{ "UIName": "Cloudflare: No Filtering uri: (https://cloudflare-dns.com/dns-query)",

   "uri": "https://cloudflare-dns.com/dns-query"  },    

{ "UIName": "Quad9: No Malicious blocking uri: (https://dns10.quad9.net/dns-query)",

   "uri": "https://dns10.quad9.net/dns-query"  },    

{ "UIName": "LibreDNS: No Filtering uri: (https://doh.libredns.gr/dns-query)",

   "uri": "https://doh.libredns.gr/dns-query"  },    

{ "UIName": "Wikimedia: No Filtering uri: (https://wikimedia-dns.org/dns-query)",

   "uri": "https://wikimedia-dns.org/dns-query"  },    

{ "UIName": "DNS4All: No Filtering uri: (https://doh.dns4all.eu/dns-query)",

   "uri": "https://doh.dns4all.eu/dns-query"  },    

{ "UIName": "Mullvad: No Filtering uri: (https://dns.mullvad.net/dns-query)",

   "uri": "https://dns.mullvad.net/dns-query"  },    

{ "UIName": "OpenDNS: No Filtering uri: (https://doh.opendns.com/dns-query)",

   "uri": "https://doh.opendns.com/dns-query"  },    

{ "UIName": "--------------------------------------------------------------------------------",

   "": ""  },   

{ "UIName": "Cloudflare: * Malware blocking uri: (https://security.cloudflare-dns.com/dns-query)",

   "uri": "https://security.cloudflare-dns.com/dns-query"  },    

{ "UIName": "Cloudflare: * Malware & Adult content blocking uri: (https://family.cloudflare-dns.com/dns-query)",

   "uri": "https://family.cloudflare-dns.com/dns-query"  },    

{ "UIName": "Quad9: * Malware blocking uri: (https://dns.quad9.net/dns-query)",

   "uri": "https://dns.quad9.net/dns-query"  },    

{ "UIName": "LibreDNS: * Adblocking uri: (https://doh.libredns.gr/noads)",

   "uri": "https://doh.libredns.gr/noads"  },    

{ "UIName": "AdGuard: * Ad-Blocking uri: (https://dns.adguard.com/dns-query)",

   "uri": "https://dns.adguard.com/dns-query"  }    

]

You can modify the code based on your preferences to change the "Choose provider" menu list.

I have no desire to interact with Google, Bing, or Perplexity, and as a rule I don't want outside parties (such as Firefox/Mozilla) deciding for me which search engines or other service providers I see advertising for. (And yes, seeing that "G" logo somewhere is advertising for Google.) I'm assuming that these companies are paying to be pre-loaded as search providers in Firefox, and I understand that Firefox needs this financial support if it's going to continue providing a browser.

After upgrading, I've always gone into the settings and removed these search providers - I don't want to see them offered as search options, and to be honest, I don't even want to see their names in the settings screens.

Now with Firefox 152, I find that I'm not able to delete these pre-loaded search providers anymore. I can turn off a switch to disable them, but there's no way to totally delete them from the list anymore. There's even a [in the documentation] which explicitly says that the pre-loaded search providers cannot be removed, only hidden.

'WHY can I not delete them?

Is there a technical reason, i.e. would the browser stop working if they were removed? Are some companies paying extra to not be delete-able, and it just happens that every one that's pre-loaded in Firefox 152 decided to pay the extra money? Or did Mozilla just make an arbitrary decision to reduce the level of control that users have over their own browsers?

Hello,

I’m using Firefox together with the "Simple Tab Groups" extension. When I remove the "List All Tabs" button from the toolbar (right-click → “Remove from Toolbar”), it disappears as expected. However, after switching between tab groups in Simple Tab Groups, the button automatically reappears on the toolbar.

Is there a way to completely prevent this button from returning, even in such cases? I would like it to remain removed permanently until I manually restore it.

If there is currently no way to achieve this, is it something that could be expected in future browser updates?

Thank you in advance for your help!

Best regards, Dmitrii

The font size in "Manage Bookmarks" is way too large, both in the sections list menu on the left and the list of bookmarks. I checked my userChrome.css file as well as the layout.css.devPixelsPerPx entry in about:config and there's nothing there to explain why only the "Manage Bookmarks" text is so large.

It's possible I changed a setting somewhere that's causing this. But I'm stumped re: what setting might be controlling the font size in only that UI. All other Firefox text sizes are good.

Thanks to anyone who knows where I should be looking

Firefox 134.0.1 (64-bit) Windows 10

In the top right corner of tab bar, a message of Finish Setup. In the pop up window all area's are check off green. I don't know what it wants and to locate page to Finish Setup

started a new profile, imported bookmarks, the about:config settings won't die. I've deleted the user and prefs.js data etc. but all the dumb changes I made before switching users just make their way back no matter how many new profiles I create. I have standard Firefox, with Nightly and Private versions installed. Win 11 25H2 whatever its called now.. please help.

zen_browser has this feature which I use multiple times per day every day: keyboard shortcut ´shift+cmd+c`to copy current URL to clipboard.

This is such a useful feature. It helps me save time and speed up my workflows a lot, so much that it's absence in Firefox is preventing me from going back to Firefox.

The feature was implemented in v1.6b back in early 2025 in zen_browser.

The keyboard shortcut to take screenshots [Ctrl + Shift + S] used to work a few weeks ago but it has stopped working for quite a while now. Doesn't work on any site, I can only create screenshots by right clicking and pressing the button manually.