Diễn đàn hỗ trợ Firefox

If firefox is closed and i click on a link in an email, 2 windows open. one blank and the other with my linked page. I can't find anything in the settings to change this. Before it did a similar thing but it was opening 2 tabs in a single window. One blank and one with my requested link. I recall chaning something that got rid of the 2 tabs opening but don't recall what and can't find anything. Apparently that change changed it from opening a 2nd tab blank, to opening a 2nd window blank.

mac os 26.5.2 FF 154.0 is my default browser

I notice below that Firefox has incorrectly labeled my OS.

Are ALT + Z and ALT + X built-in keyboard shortcuts?

I forgot whether I updated to version 153 or 154. After that, pressing ALT + Z goes to the previous tab, and ALT + X goes to the next tab.

I can't find this information in Firefox's keyboard shortcut manual. I also tried enabling Firefox Safe Mode (no themes, no plugins), but these two keyboard shortcuts still work, which is strange.

So I'd like to ask everyone to test if this is the case? Because I originally had these two keyboard shortcuts configured in the app, but now they're not working.

I clicked on the bookmarks icon to open one up, and there's nothing there. where did my bookmarks go? It's been a week, maybe, since I last used the bookmarks menu

I cannot update my payment method because you redirect me to paypal (former payment method) where I don't have an account anymore. There are no other options... Best regards, Philipp

Hello,

I'd like to report an issue with a recent Firefox update.

Since one of the latest updates, the "Close all duplicate tabs" option has disappeared from the tab list menu (the menu opened via the small arrow on the right side of the tab bar). I've looked for it elsewhere in the UI and haven't been able to find it.

System info:

Firefox version: 154.0 (64-bit) Operating system: Windows 10 Professional, version 22H2 (OS build 19045.7663)

This feature is particularly important to me because I regularly keep a very large number of tabs open — often several hundred, sometimes over a thousand — and being able to close all duplicates at once was essential for managing and cleaning that up.

A couple of things make me think this may be an unintentional regression rather than a deliberate change: Mozilla's own support article on the Tab overview menu still lists "Close all duplicate tabs" as part of this exact menu, and I couldn't find any mention of its removal in the release notes for the two most recent versions (153.0.3 and 154.0). That said, I haven't found an existing bug report that matches this, so I wanted to check here first.

I'd really appreciate help with the following:

Why has this option disappeared from the tab list menu? Is this an intentional change, or a bug/regression? Has the feature simply moved somewhere else in the UI? If it's a bug, is there already a tracked report I should follow, or should I file one?

Thank you in advance for your help — this was a feature I relied on daily.

First post. Not really a question.

I noticed last week that some pages didn't load, and Activity monitor showing Firefox app using 170-180% which I know is way too high. Forgot to check memory usage.

I rolled back from 154 to 153 by restoring it from backup, and same with the Firefox folder in ~lib/appsupp/, relaunched Firefox and cpu was back to 2-4% cpu with a couple of windows and tabs. I've turned off auto-updates.

On my system, something is wrong with v154.

Mac Mini M4 Pro 12-core 24/512, macOS 15.7.5.

Since the latest update, I can't see the text in contextual ("right-click") menus. I'm using Version 154.0 (64-bit) on Win 11 for Snapdragon. I've attached an example.

How to deal with this?

Default homepage is yahoo. Since the update to version 149, if I do a search from yahoo, the new tab that opens with the search result is blank most of the time. I have to click reload for the search results to show up.

Is anybody else having that problem? Seems to be yahoo search specific but not 100% sure.

Dan

Hi,

In the latest firefox update 154, no start pages are displayed that were distributed with a registry key via group policy. It only works again if you change this setting manually in the Firefox settings.

In Version 153 it´s fine.

Jan

Anyone succeed with running Firefox in headless mode under Ubuntu?

I tried:

firefox --headless --safe-mode -P headless https://quan.hoabinh.vn

but got this error:

[12545] Sandbox: CanCreateUserNamespace() unshare(CLONE_NEWPID): EPERM

• • • You are running in headless mode.

[GFX1-]: RenderCompositorSWGL failed mapping default framebuffer, no dt

I installed Firefox as from "https://packages.mozilla.org/apt" repo.

I checked my website https://angora.id https://angora.id at Mozilla Observatory and got A+ with 125 / 100 score.

I just curious how is maximum score can I get on Mozilla Observatory?

The autocomplete dropdowns for form fields have recently changed appearance, and I strongly prefer the previous, simple design.

The new version has:

• Clock icons next to autocomplete/history entries
• Much more vertical padding, making the list unnecessarily large
• Rounded "pill-shaped" highlighting when hovering over an entry

The previous autocomplete list was much more compact and clean, without the clock icons, excessive padding or rounded hover backgrounds.

Is there currently a setting, `about:config` preference or other supported way to restore the old autocomplete list appearance?

Ideally, I would like to use the previous style:

• No clock icons
• Compact rows with the previous amount of padding
• No rounded/pill-shaped hover effect
• Otherwise retain the existing autocomplete functionality

If there is no setting to restore the old appearance, could an option be added to allow users to choose between the old and new autocomplete UI?

I have the VPN symbol in the upper right corner of my computer screen and have activated several times in the past when the circle turned green. The inactive form is still there, but it will not turn green when the pointer of my mouse is on it? What is wrong?

I use WhatsApp web with Firefox 151.0.3 on a Macbook Air. In WhatsApp web, you should be able to emoji over a message sent by someone else. One clicks on the smile icon at the side of the message, the emoji pallet appear above and select one of a handful of emojis. Since a recent update, the pallet no longer opens. It's just white space, the cursor does not change allowing you to pick one of the emojis. See screenshot. Is there a fix for this please?