Firefox on Android phone refuses to sync

For years, I've been using FF on desktop (Linux), tablet (Android) and phone (Android - Samsung S24+). Sync has never been a problem until two weeks ago when FF on the ph… (read more)

For years, I've been using FF on desktop (Linux), tablet (Android) and phone (Android - Samsung S24+). Sync has never been a problem until two weeks ago when FF on the phone has either refused to sync when I tapped the command, or hasn't synced for many hours or sometimes days (which is why I tried to do it manually). So, I signed out of my FF account on all 3 devices and then signed back in. The desktop computer and tablet are syncing normally, but the phone still won't sync. When I tap the 3-dot menu on the phone and then my name, it says the phone has NEVER been synced and tapping the sync command does nothing. Under "Choose what to sync", all options are checked, but greyed out. Can't change them, in other words. When I access bookmarks on the phone, it properly shows what was there before the last sync. The phone is running FF version 150.0 Build 2016155439

Help!

Open 3 1 55

UI shifts slightly downward when tapping the private browsing icon in Firefox for Android on Nothing Phone (1).

I found a UI bug in Firefox for Android on Nothing Phone (1). Device: Nothing Phone (1) Android version: 15 Firefox version: 150.0.1 (Build #2016157687), 094f3362dcbc efd… (read more)

I found a UI bug in Firefox for Android on Nothing Phone (1).

Device: Nothing Phone (1) Android version: 15 Firefox version: 150.0.1 (Build #2016157687), 094f3362dcbc efdce34f05b355607cdce06a4ef4 GV: 150.0.1-20260427013024 AS: 150.0.1

Steps to reproduce: 1. Open Firefox on Android. 2. Tap the private browsing icon/tab switcher. 3. Observe the screen layout.

Expected result: The UI should remain stable without moving.

Actual result: The whole interface slightly shifts downward after pressing the private browsing icon.

The issue is visible in the attached screenshots.

Open 1

The tabs will suddenly no response somehow, whatever the network condition is good or bad, pull to refresh the page is useless at that moment, in android platform

As title, The tabs will suddenly no response somehow, whatever the network condition is good or bad, pull to refresh the page is useless at that moment, in android platfo… (read more)

As title, The tabs will suddenly no response somehow, whatever the network condition is good or bad, pull to refresh the page is useless at that moment, in android platform

Open

Android window size shrinks when swapping between private and regular tabs

Whenever you go from regular tabs to your private ones, or private to regular tabs, the top and bottom margins both grow by about the width of the URL bar. Rotating the p… (read more)

Whenever you go from regular tabs to your private ones, or private to regular tabs, the top and bottom margins both grow by about the width of the URL bar. Rotating the phone sideways actually makes it worse, adding bars on the side in addition to the top and bottom ones. The bottom bar will go above the keyboard when you're typing, and so far the only way to get rid of it is restarting the app. It's been affecting me for about a month now; I've attached some examples of how it looks before and after below, and here's some more info about my phone:

Firefox Version: 150.0.1 (Build #2016157687) OS: Android 15 Model: moto g stylus 5G - 2024 Extensions: uBlock Origin

Open

Collections missing from Homepage despite being active in "Select collection" menu

I am experiencing an issue where my saved Collections are not appearing on the Firefox Homepage (New Tab page), even though they clearly exist in the system. The Issue: W… (read more)

I am experiencing an issue where my saved Collections are not appearing on the Firefox Homepage (New Tab page), even though they clearly exist in the system.

The Issue: When I attempt to add a page to a collection, the "Select collection" overlay correctly shows my existing categories: Read Later, News, and Gemini.

The Discrepancy: When I return to the Firefox Homepage, the Collections section is completely missing. Only "Shortcuts" are visible.

Troubleshooting done: I have verified that I have active tabs saved within these collections (as seen in the attached screenshots), but the homepage remains empty below the shortcuts.

Device Specifications:

  • Firefox Version: 150.0.1 (Build #2016157687)
  • Build ID: 094f3362dcbcefdce34f05b355607cdce06a4ef4
  • GV: 150.0.1-20260427013024
  • AS: 150.0.1
  • OS: Android 16

Moderator note: This question has been edited to specify values in the "Firefox version" and "Operating system" fields based on the info above.

Open

Is it normal that cookies with sameSite strict are not sent with a window.reload on android

When going to immich public proxy (as an example) from a link from another app, the Set-Cookie header is set but when performing the window.reload the cookies are not sen… (read more)

When going to immich public proxy (as an example) from a link from another app, the Set-Cookie header is set but when performing the window.reload the cookies are not sent within the request.

See code : https://github.com/alangrainger/immich-public-proxy/blob/main/app/views/password.ejs#L49-L69

Reproduction steps : - have a link inside an app - click link - on site perform a request that returns a Set-Cookie header with sameSite=strict - perform a window.reload - check that cookie isn't sent

The same steps where performed on different browsers (Samsung Browser, Firefox on windows) but all of them sent the cookies allowing the authentication.

Is the behavior wanted ? From ietf it seems that is not a normal behavior : https://datatracker.ietf.org/doc/html/draft-ietf-httpbis-cookie-same-site-00#section-2.1

Open

Tabs don't render in desktop on tablet

I have a Samsung Galaxy S8+ tablet, UTD OS, using Firefox 150.0.1. The 'use desktop setting' is on, but most pages don't render in the desktop and are so skewed, they're … (read more)

I have a Samsung Galaxy S8+ tablet, UTD OS, using Firefox 150.0.1. The 'use desktop setting' is on, but most pages don't render in the desktop and are so skewed, they're impossible to view. I've turned the setting off and it makes zero difference. I understand Firefox was changed to always render in desktop mode on tablets sometime last year, but it's not working and I'm at a loss. I don't want to switch to a different browser, but I've tried everything I can think of at this point. If anyone has a suggestion or fix short of switching, I'm all ears. Thank you.

Open

Password sync does not work

So I moved from my old Galaxy S21 Ultra into a new Xiaomi 17 ultra. Installed Firefox and logged in with the qr code thing on my main computer. Firefox on the phone says… (read more)

So I moved from my old Galaxy S21 Ultra into a new Xiaomi 17 ultra.

Installed Firefox and logged in with the qr code thing on my main computer.

Firefox on the phone says it's synced but the list of passwords is empty. Not a single password in the list. Lots of passwords on the main computer.

This worked just fine on the old S21 Ultra.

Any ideas?

This is a completely fresh install on a new phone so not to be ungrateful, the typical good advice about clearing cache and reinstalling is just not relevant here.

Open 4 77

leave feedback

Why do you have a leave feedback button in the app but it leads to the question section instead of leaving feedback options. Lastly, why is it so hard to make Firefox dis… (read more)

Why do you have a leave feedback button in the app but it leads to the question section instead of leaving feedback options. Lastly, why is it so hard to make Firefox display in dark mode across every webpage?

Open 4 225

Feature Request: Built-in Background Play for All Video Platforms (No Desktop Mode Needed)

Title: Please Add Native Background Play for YouTube, Facebook & All Video Platforms Hi Firefox Android team, One feature request that would make Firefox Android trul… (read more)

Title: Please Add Native Background Play for YouTube, Facebook & All Video Platforms

Hi Firefox Android team,

One feature request that would make Firefox Android truly unbeatable:

Built-in Background Play — for all platforms.

Currently, to play YouTube or Facebook videos in the background, users have to manually switch to Desktop Mode, which is a frustrating and confusing workaround. Most users don't even know this trick exists.

Please make background play a native, one-tap feature that works automatically on any video platform — YouTube, Facebook, Instagram, and beyond — without requiring Desktop Mode or any workaround.

Brave is already competing for YouTube users. Firefox can win them all by being the only mobile browser that plays any video in the background, natively and effortlessly.

This single feature would bring thousands of users away from premium subscriptions. YouTube Premium's biggest selling point is background play. Firefox can offer that for free, for every platform, to every user.

That is a massive opportunity. Please take it.

Thank you for your time and for building a browser that still fights for the open web.

Best regards, A Firefox Android user

Open 2 11

Autoplay Block audio and video not working

Firefox for Android 150.0 Build 2016155439 OS Android 16 Autoplay set to "Block audio and video" but audio and video still autoplay from NPR.org website started happening… (read more)

Firefox for Android 150.0 Build 2016155439 OS Android 16 Autoplay set to "Block audio and video" but audio and video still autoplay from NPR.org website started happening a few weeks ago Is there a way to fix this please?

thank you

Open 10 3 31

How can I share inactive tabs?

I'd like to share my inactive tabs to keep them when switching my phone. It seems to be impossible to even manually select inactive tabs in order to share them. Is there … (read more)

I'd like to share my inactive tabs to keep them when switching my phone. It seems to be impossible to even manually select inactive tabs in order to share them. Is there some workaround?

Things tried: 1) Open tab window 2) Open the "Inactive tab" dropdown 3) Select "Select tabs" However, I still cannot select inactive tabs.

I'm also happy for another way to backup inactive tabs, so I can restore them to another browser on another phone at need.

Open 1