Diễn đàn hỗ trợ Firefox dành cho Android

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!

你们家firefox beta安卓端删除数据重新登录后点立即同步有效果 一退出重进 或者连个vpn或者连个vpn然后断开vpn 就出现以下问题 1.按了之后一直显示 同步中 2.按了没反应 问题是持续的 也就是说一旦立即同步用不了了就得删除firefox beta的数据重新登录 太恶心人了

希望尽快解决

感谢你们

Добрый день. У меня всё было хорошо, и ранее с телефона всегда были доступны синхронизированные вкладки, которые открыты в браузере на ПК, однако недавно мне понадобилось разлогиниться на телефоне, потом я снова залогинилась, и с тех пор у меня возникла с ними проблема. Вкладки просто пропадают сами по себе спустя время. Чтобы они снова появились, мне нужно оказаться у своего домашнего компьютера и открыть Firefox, и осуществить синхронизацию (если она не успела произойти автоматически). Тогда какое-то время эти вкладки появляются в Firefox на моём телефоне с Android,.. а спустя время снова пропадают. Это очень неудобно, потому что я не могу, находясь на работе или в поездке, комфортно воспользоваться вкладкой, использованной на домашнем компьютере. Раньше эти вкладки были доступны всегда, и я всегда была спокойна и уверена, что могу к ним обратиться. Что делать? Помогите, пожалуйста. Прикрепляю скриншот, где видно, что вкладок нет (к сожалению, сейчас не могу сделать скриншот, где они есть, поскольку в данный момент времени я нахожусь на работе).

I'm signed in on both the mobile and desktop app with the same account, sync is on for both of these, but the sync is not actually happening. None of my passwords or history is accessible in the mobile app. It also seems to not save any history at all because I keep having to type in whole web addresses instead of the app filling in the rest itself, even though I've visited these websites many times. There's no error in the settings or anything, it's just not working properly.

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.

Recently, for some reason, my Send to Device on mobile doesn't send the tab to Desktop. I'm running the latest Firefox on PC and mobile (Galaxy S25+ latest Android version).

I've tried uninstalling/reinstalling mobile, logging out/reconnecting my Firefox account on PC and rebooting but nothing seems to work. I CAN send from PC to mobile device; just not the other way around. Started maybe a month or so ago without warning.

I've been a Firefox user for ~15 years or so and specifically a Nightly user for about 10 of those. On my Samsung Galaxy S24+ I recently had to reinstall the Nightly app; However, when I logged in and confirmed my identity to Mozilla™ it appears to have synced everything EXCEPT my bookmarks. Luckily I had the standard Firefox Browser for Android app also installed on the same device so not all is lost.

My Question: What could cause Nightly to sync other things but exclude bookmarks? Is there a way to export the ones from the other Firefox version to a file, then import them to Nightly?

Any Help Would Be Greatly Appreciated! Thanks In Advance :-)

• Please Note: I'm a Legally Blind User so if there are misspellings or punctuation errors in this post please bare with me*

Hello,

I sorted out my passwords for several reasons in Firefox on one device and want it to synchronize with my other devices.

Whatever I try, the passwords stay the same on my other devices. I have checked and unchecked the password synchronization box, I restarted, I even deleted the app and reinstalled, but when I sign in, it still has the same passwords.

This took a loooong time.

Why is the password synchronization not working and how can I fix this?

Thank you.

Log in with usernames and passwords are not working properly. I had to change my emails for logging and other sites because my email was stolen. Now Firefox won't let me log in properly. And the clipboard on the Android is not synced properly with the computer for Firefox. So I had to start using Chrome.

Backup and sync is not working on the phone and it's starting to piss me off beyond belief because this is why I got rid of Firefox in the first goddamn place. The sync button is not working at all I cannot get it to sync at all to my desktop nothing is working and I can't access my passwords I can't access nothing.

The android UI was updated in recent Firefox updates and it is now impossible to enable sync from an Android phone due to this change.

According to Firefox during setup the proper steps are:

1. Open firefox on your mobile device. 2. Go to the menu and tap "Sign In" 3. Tap Ready to Scan and hold your phone over this code.

The new android UI does not have one universal menu. Instead it includes a list that lets me:

• Bookmark a Page
• Find in Page
• Turn on Desktop Mode
• manage Extensions
• "More"

It also features:

• My Name for managing and backup/sync
• Settings

I'll enumerate the issues with this.

If I select More. This is different than the more settings options under "Settings". It allows me to:

• Translate the Page
• Add to Shortcuts
• Add to Home Screeen
• Save to Collection
• Open in App
• Save to PDF
• Print

All of these are irrelevant.

If I select my Account, the most obvious of these ambiguous choices. I can:

• Manage Account
• Sync Now
• Change the Device Name
• Sign Out
• Choose what to sync.

There is NO option here to scan a QR code. Manage Account leaves the app and opens a mozilla account webpage. None of these options work.

If I select "Settings" I receive a large list of useless options - none of which allow me to scan a QR code.

Since scanning the QR code is the ONLY way to enable syncing via the mobile app am I understanding correctly that Firefox has removed this feature and is mistakenly still advertising a deprecated feature inside their MacOS app which prevents me from actually ever signing in to my account.

If this is intended to still be a feature. How do I do it? The instructions are unclear and your UI does not help in any way to figure out how to navigate to the correct place where I might possibly be able to move forward in any manageable way.

I signed in to my account on a new PC and it asked something about if I have mobile phone and I said yes so it gave me a pop-up wit the following text: "Sync Firefox on your phone or tablet 1. Open Firefox on your mobile device 2. Go to the menu and tap Sign in 3. Tap Ready to Scan and hold your phone over this code" And I get stuck on step 2 I can't find a Sign In button, attached an image of what clicking the menu (...) button shows. So how exactly do I tell firefox that I want to sync between this machine and my mobile? I do have it working nicely with my laptop but I don't remember how exactly did I sync that, I kind of assumed just signing into the account would be enough enough but based on this pop-up it isn't.

Since the last update to version 148.0 on Android, it's no longer possible to send tabs between devices (reliably). When I try to send a tab from my android phone to my laptop, it says that it's unable to send. However, after a while it appears on my laptop anyways after a long delay, but not always. It works in the other direction, but the checkmark that usually appears does not show up, and there's also a time delay, but not as severe as in the other direction.

I've been using Firefox on Android for a couple of years. I love the way it collapses open tabs that have not been accessed for a while. I had maybe 40 of them that I refer back to from time to time.

Last night I opened Firefox to look something up and I had zero open tabs. I did nothing, nothing crashed, no error messages, no upgrades (that I'm aware of), nothing - just two years of collected reference material gone.

I use my Mozilla account to sync to my desktop browser (version 147.0.4 on Debian 13.3) and they're gone from there too.

Is there any chance I can get them back?

Version 147.0.4 from the Google Play Store on a Pixel 8 Pro with stock Android 16 and the January 5, 2026 security update.

1.syncronising in firefox mobile app is awful if you delete some tab witg your linux firefox it wont syncronise with your phone anymore and wont let you to sync manualy(the sync button will freeze) and even do if you dont do anything sync button will freeze and wont sync with linux firefox. when this happen i have to uninstall my firefox and reinstalled it.

Hello to all. I am writing to ask for help with sync for Android. I have 2 Samsung devices: my S24, which is my phone, and my Galaxy Tab S10 FE+, which is my tablet. I do have an HP laptop, running Windows 11. That device is fine.

I recently noticed both of my devices had the same model # shown up under my Firefox. {it was my tablet.} Idk why. So I read online, that I should sign out, then sign back in, to fix this. So I signed out on both devices, at the same time. I closed both windows, then I restarted both devices, & then signed back in, at the same time. My S24 is fine, but my S10 FE+ is not. It won't sync. So I repeated the same steps with it, and it still will not sync. So I went to my Mozilla Account, then Connected Services, to see the list of devices. I did note a duplicate device, not sure which one. There was no name. I did sign out of it there, but otherwise, everything else looks good. I also pulled up some articles online & troubleshooted, but again nothing. I'm now doing a hard reboot, which is where I turn it off, then wait for at least 5 minutes. Then I'll turn it back on. Nope, nothing. Does anyone have any suggestions as to how to fix this, please? I have no idea as to how to go around the matter by manually doing everything like once a day. I mean, yikes. Thank you for any help, seriously.