Firefox Community Forum

Hello. Yesterday, I deleted all the stored login information, such as cookies. Latter, I tried to make login, I filled my name and password. As usual, Facebook refuses to login, giving me a choice of extra steps necessary. I chosen to receive a security code on my e-mail. I copy and pasted it on the suitable place and click on the button to proceed.

That's when things stop working. It usually it works as expected, but now it just return to the login page, nothing filled. Bellow, an apparently relevant info the shows on browser console:

"ErrorUtils caught an error:

_.getClientCapabilities is not a function [Caught in: Passkey authentication failed during visibility callback]

Subsequent non-fatal errors won't be logged; see https://fburl.com/debugjs. Object { column: "1421", clientTime: 1774704924, extra: {}, guardList: [], hash: "ukkpfs", isNormalizedError: true, line: "86", loggingSource: "FBLOGGER", message: "_.getClientCapabilities is not a function [Caught in: Passkey authentication failed during visibility callback]", messageFormat: "_.getClientCapabilities is not a function [Caught in: Passkey authentication failed during visibility callback]", … } D_9oglqPD5n.js:79:56"

I had 6 groups in the sidebar showing when I closed Firefox last night. Today when I opened Firefox there was only one group showing how do I get the other groups re-displayed in the sidebar? I am finding no clues when using the last line in searching help

I set up firefox using my customised user.js, and I have been able to configure everything just as I want except for "Search Shortcuts".

Are there Firefox "preferences" (in the about:config "preferences" database) for the 10 or so "alternative search engine" entries (shown in about:preferences#search)? If not, is there any programmatic way that I can edit these "alternative search engine" entries so that I don't have to manually disable and/or remove them every time I install Firefox on a new machine?

TIA.

I had an issue where my browser disappeared. Here are specifics for my installation.

Name Firefox Version 142.0.1 Build ID 20250827004350 Distribution ID raspberrypios User Agent Mozilla/5.0 (X11; Linux x86_64; rv:142.0) Gecko/20100101 Firefox/142.0 OS Linux 6.12.62+rpt-rpi-2712 #1 SMP PREEMPT Debian 1:6.12.62-1+rpt1~bookworm (2026-01-19)

I relaunched and then restored previous session. After that, I searched open tabs, but when I selected a tab that was reported to be opened,  it was not restored. I went to troubleshooting mode and it worked fine suggesting some issue with an extension.  What, if any logs could I capture to help debug? thanks

On Debian Linux, how can I make all text in Firefox BOLD - t'ab names, texts on Toolbars, text on web pages, everything?

I would like to allow or block extension for certain site.

What i need is: 1) Turn on extension on specific sites (like for government) 2) Do not load extension on specific sites

So there should be Order Allow,Deny and reverse Order Deny,Allow And two rules Deny *://example.com/* Allow *://example.com/some/*

Hi! I have a lot of tabs synced in the mozilla account on a device that I have not connected for a while (forgot it at a place far away). Recently I needed to open some of the tabs and while the device was shown in the account the tabs were not accessible. Isn't that one of the major points of using the sync, to be able to see things between the devices??? My reaction - WTF? It's like the perfect lie - hey look we have your device here.... but it is actually just the name. I am so frustrated about this.... why don't you even talk about this? Why is there no warning that my data is going away??? Why is this decision to delete the synced tabs (not the device but only its tabs) from the account happening without any notice, at a time randomly decided by someone? How is that making sense? Why can't the user be informed and make a decision? I think that's one of the reasons why you lose and lose and lose market share, because you don't care anymore about your users, you think all are idiots and you can make decisions for them and restrict their abilities to manage their experience. I know it is free software but it's getting worse until it will become absolutely irrelevant, please stop smoking whatever you're smoking and make more sense with your decisions to add/remove features and alter functionality. Just one more example of another senseless decision - the time options when I want to clear the history. Just 1/2/4h, since 12am and everything.... I am trying but there's no logic in choosing these intervals and restricting the user to only those.... Another one.... the extensions... it's like a dumb game of hide-and-seek to find their options and manage them or to put their icon on the toolbar or somewhere handy and visible so it can be used as it is supposed to be used.... does not make any sense! Ah yeah and the very very old complaint: WHY did you remove the status bar? Lots of info can be added there and it was VERY useful. This was one of the big "WTF is happening with Firefox?" moments.... only downhill from there. I will probably give up on Firefox if it doesn't come back to actually making sense. Not all users are idiots, give them back the power to use your (still good) software in the way they want, stop taking away features and options. And don't forget the power users, take their options away and they will go away.