Diễn đàn hỗ trợ Firefox

So, I recently updated my copy of Mozilla Firefox, and I noticed something strange. The button for the built-in VPN is disproportionately large to other buttons and clickable elements. I don't see it in the release notes, so I doubt this is an intentional design choice by the UX team, at least I hope it isn't. Any help will be greatly appreciated, as it is really distracting.

If it helps, I'm using Mozilla Firefox 151.0.2 running under GNU/Linux Debian 13 Trixie as a Flatpak.

I have CentOS Stream release 8 on my laptop and desktop, with firefox-115.11.0-1.el8.x86_64

If I connect to some sites, such as signin.costco.com, www.tesla.com/modely, www.airindia.com, www.meijer.com, I get errors such as You don't have permission to access "http://www.tesla.com/modely" on this server. Reference #18.71951eb8.1774502305.1a7c7680 https://errors.edgesuite.net/18.71951eb8.1774502305.1a7c7680 You don't have permission to access "http://www.airindia.com/" on this server. Reference #18.c50e2017.1774501671.2dadbdb4 https://errors.edgesuite.net/18.c50e2017.1774501671.2dadbdb4

The error appears invariant of my IP address (different IPv4 addresses after rebooting my router, or an IPv6 address via a proxy). I have Firefox 60.7.2esr and 78.5.0esr on an older machine. Those sometimes work to some of these sites, but don't support all the site functionality, e.g. I can't actually login to Costco. www.tesla.com/modely works in 78.5.0esr. The Firefox on my Android tablet works for tesla; I haven't checked all the other sites. In conversation with my ISP (Starlink) customer service AI, I have tried deleting cookies and disabling plugins (only H264 and Widevine) with no effect. It suggests there is a problem with Akamai fingerprinting the browser.

I get edgesuite errors using Lynx or elinkx or curl also

Since updating Firefox from a previous version, the browser no longer displays any Unicode emoji characters. Where an emoji would normally be rendered (👁), the browser instead displays empty space. Websites such as twitter and discord, which use their own artwork for emoji, are unaffected. This has negatively affected my browsing experience.

For illustrative purposes, I will add a series of emoji and include a screenshot of how they are displayed: (😀🙁😡💀). Other characters still display correctly: (β❖♞䷲⎈𐘢𓀺இ). My computer otherwise displays emoji correctly. The issue persists after disabling extensions, and has persisted between computer restarts.

I'm running Linux (NixOS) and Firefox version 148. I've tested on Chrome based browsers and they work fine. Tested on Firefox forks and they also don't display correctly. This is new since less than a week ago.

Thanks for any help with this.

I deleted a profile not knowing it would delete everything I had. How can I undo it? I didn't want Firefox Profiles, it was forced. I deleted it, and everything just got deleted. Can someone please help revert this? Thanks.

I'm a beta update channel user, so this may not reflect what 'normal' users are seeing. I use Firefox in Linux, debian v13, so normal people that are using Windows or MacOS also might not see the changes I'm asking about? -- I have no way of knowing.

Anyway: in FF v152.0b6, the "Connection Settings" area seems to have disappeared entirely from the settings menu. I used this area of the settings frequently.

The ability to set proxy still exists in the about:config settings area. In the future, will about:config be the standard place to go for people that want to manually set (or toggle) an http/https proxy?

Thanks for reading, and thanks to all the Volunteers who make this place and Mozilla software function. I use your stuff all day, every day, and my life is better because of it.

Desktop Firefox 142.0.1 (aarch64) iPhone 11, iOS 18.5, Firefox 144.1 (62735)

I just reinstalled the desktop which needs the mobile phone's bookmarks. If I wipe the phone bookmarks, I lose everything. Backup, how on the phone? Sync, how? The Firefox Bookmarks Sync isn't an exact science and a misstep could be catastrophic!

Here's what I'm looking at on the desktop and the phone, attached. 1. Desktop Firefox Bookmarks Sync window show a 3 horizontal lines (hamburger icon) for iOS Firefox settings. 2. Phone Firefox has 3 horizontal dots (meatballs icon) for iOS Firefox 3. Phone Firefox has my Firefox account logged in and a Settings option, but which one (I choose Settings 4. Phone Firefox Settings shows my ACCOUNT and a Sync Now option, but which one (I don't want the phone to Sync and pull no data from the desktop and wipe the phone Bookmarks (no backups)).

Hello,

I just installed a new version of Linux Mint (Zara) and all is right with Firefox, except the screenshot who doesn't work. The buttons "Capture the visible area" and "Capture the entire page" don't work. The additional tool in the toolbar doesn't work. What can i do, please? Thanks for your answer. Pierre

Hello, I'm using Firefox on Linux Mint. All of my homepage shortcuts have disappeared without the option to add them back. I tried toggling the shortcuts option on and off and nothing happens. Nothing also happens when checking and unchecking the sponsored shortcuts setting.

For some reason text rendered in canvases (used by Minecraft hostings to display console) is distorted. I'm not getting this behavior in other browsers (including Zen – Firefox fork). The issue persists in both stable and nightly versions, with and without hardware acceleration, in safe mode too. Any clues?

Internet searches for Firefox support/forums shows https://www.mozilla.org/en-US/about/forums/ and https://www.mozilla.org/en-US/about/governance/policies/participation/

Searching around these links is too difficult to find where to post any questions, which happens to be on this link https://support.mozilla.org/en-US/questions/

Please make UX friendlier.

Tried to update Firefox. Got the message: your updates are being managed by your organization. I'm a home user. No organization. What is the problem? Thank you in advance.

I've been using Firefox on Linux since it was Nautilus. Currently running EasyOS Linux Daedalus and Excalibur on different Lenovo ThinkCentre Tiny Core i3-8100t boxes and different drives: A good Samsung SSD and two good flashdrives. 32G new RAM installed on each box. I've been using these boxes for over a year. For the last month or so, ever since updating to v. 146 my tabs have been crashing like crazy! I don't normally have more than 10 tabs open at once. But now, as soon as I open a 5th tab it crashes.

I'm running Top to watch CPU and RAM usage. I see nothing unusual. I've rebooted. Disabled all add-ons and run in Troubleshoot mode. Tabs still crash. My only add-ons are uBlock Origin, Temporary Containers and Dark Mode. It happens whether I have hardware acceleration turned on or off. I don't know what else to try. Here are my most recent crash reports. I hope you can figure out the problem. Thank you so much!

Submitted Crash Reports Report ID Date Submitted bp-570147ea-4ab1-4543-828a-d5b7d0260202 2/2/26, 12:04 PM View bp-6422cca3-a458-4b68-9d70-e4acc0260202 2/2/26, 12:00 PM View bp-6be58295-46a1-411d-a241-3f85b0260202 2/2/26, 2:52 AM View bp-afa98aeb-f15f-418b-abe5-06da80260202 2/1/26, 10:03 PM View bp-9c7632d5-db44-47e3-babf-a2bd70260202 2/1/26, 8:28 PM View bp-95d245df-f31d-4512-80bd-f0d180260202 2/1/26, 8:18 PM View bp-85752e77-2bb1-4f13-a2b5-68fdb0260202 2/1/26, 7:24 PM View bp-ae5d263d-608b-485e-867e-2aa190260202 2/1/26, 7:21 PM View bp-9efef3a5-b1ef-4279-b055-fa4760260202 2/1/26, 7:00 PM View bp-5b05d78e-26d2-4896-bbba-bea6a0260202 2/1/26, 6:58 PM View bp-acbd8424-5545-4e40-afbb-93ca90260201 2/1/26, 12:33 PM View bp-1415051a-9824-44d7-8f87-8fd270260124 1/24/26, 8:47 AM View bp-9c50b2a5-27a7-45f6-a65c-e45070260124 1/24/26, 8:47 AM View bp-28e5e55f-952f-45a9-9c99-44e300260124 1/23/26, 11:37 PM View bp-3b509a00-0a8f-4a67-94ec-fad500260124 1/23/26, 11:37 PM View bp-65b6d54d-cbf7-4045-b189-019fb0260124 1/23/26, 11:23 PM View bp-a5e110b3-6d7d-4aa4-b8a7-439f10260124 1/23/26, 9:32 PM View bp-d74bf5ce-fdcd-41e4-b2be-6ed990260124 1/23/26, 9:12 PM View bp-cebf5062-d3aa-4653-9d64-2ad0a0260124 1/23/26, 6:57 PM View bp-1bcd2f2e-2136-412b-8919-ed96c0260123 1/23/26, 5:54 PM View bp-50d66365-399c-464a-b6f4-8a3230260123 1/23/26, 5:32 PM View bp-95b5ab2b-35d4-4867-8f33-ba1b10260123 1/23/26, 5:26 PM View bp-b7c48b83-02cd-435f-b466-dab650260123 1/23/26, 5:26 PM View bp-1eccdf1e-184f-4cd8-8e1f-1d6cb0260123 1/23/26, 3:33 PM View bp-22b3fe80-9420-403b-84a4-4840c0260123 1/23/26, 12:26 PM View bp-aa6baadc-fa01-4c42-90d5-5d4120260202 2/2/26, 12:07 PM View bp-9cf8b3be-8be4-4fd2-a812-444540260202 2/2/26, 12:07 PM View bp-22f8081d-7052-4962-a699-66b600260202 2/2/26, 12:07 PM View

Whenever i search something on google, firefox desktop (all fine on android) is failing to display the ai(gemini) answer no matter what questions i ask.

Same happens in the "AI Mode" option that is available in google's recent update.

And, I,m logged in.

This started since a week, everything was working fine before that.

Adding the images below.

Since a while, I think it is since I created an extra testprofile with "firefox-esr -P", but I've set my main profile as default again

When opening a link in another program than firefox I get always: a popup "Close Firefox" "Firefox is already running, but is not responding. To use Firefox, you must first close the existing Firefox process, restart your device, or use a different profile."

I do have both firefox and firefox esr, I usually use regular firefox the second came with the debian 13 repository.

I keep the esr to test display issues for reproducibility on my personal desktop, because I manage debian 13 kiosk-style desktops with firefox-esr.

(I noticed also that the regular firefox profiles can not be opened in firefox esr, so I use an extra profile for esr)

I am on Linux Mint 21.2, and I just updated Firefox (141.0). Now, the bookmarks bar, toolbar, and the tabs (everything above the displayed page), as well as the menu, bookmarks menu, and sidebar, are in light mode even though I have dark mode set (They were dark before the update). I tried playing with the Dark Mode settings to no avail. My system is set to dark mode in general. Are others experiencing this? Is there some sort of fix?

I have recently installed the containers extension and have been having a bit of trouble with one site (the others are fine), which seems to originate from the manner in which the site is structured. As it references new pages, they are often in a different URL. For example, you start in login.site.com, which then tries to load dashboard.site.com, but it fails authentication on dashboard.site.com because it opens in a different container. Which then tries to open the login.site.com page again, which displays the login page, but showing it tying to complete the original authentication. I have tried to add each step along the way, but without success. Is there a way to overcome this?

`StartupWMClass=firefox-aurora` in `/usr/share/applications/firefox-devedition.desktop`, with actually `firefox-dev` for opened windows.

Version: Ubuntu 25.04, GNOME 48, firefox-devedition 143.0b2.