Diễn đàn hỗ trợ Firefox

Scroll bar issue on some websites When accessing certain websites, the scroll bar disappears (for me, it's on the right side of the screen), and it's no longer possible to view the page content, even using the keyboard's scroll keys.

DETAILS Only affects certain websites Firefox is up to date No blocking extensions are installed Access is possible with another browser Thank you for your feedback, Sincerely, F. Vernoux

barre de défilement pour certains sites Lors de l'accès à certains sites la barre de défilement disparaît (pour moi à droite sur l'écran) et il n'est plus possible de consulter le contenu de la page même avec l'utilisation des touches de défilement du clavier; PRECISIONS Concerne seulement certains sites Firefox version à jour Pas d'extensions bloquantes Accès possible avec un autre navigateur Merci de votre retour, Cordialement, F. Vernoux

after my laptop crashed (again did so over 100 times) but this time all history is gone, could not restore last session/s - can't log into my accounts (any) - can't set it to an earlier date (e.g. yesterday) to eliminate whatever the problem is (am not an IT expert, so I don't know how - just know that it is possible) - I have tried for 4 hours - no avail - I really need the status of 4-5 hours ago so I don't lose so much

Вы заблокировали все расширения которые я установил!!! Какого хрена вы это сделали!!!??? Я вас просил об этом!? Или может вы меня спрашивали, нужны они мне или нет!??? Почему вы позволяете хозяйничать в браузере на моем ноутбуке!!!???

I have my browser.sessionstore.max_windows_undo in about:config set to 60 – it's been like this and working fine for several months.

It's set to this high number because I use an assistive technology which creates a fresh pop-up every time I deploy it, and Firefox treats it as a browser window closure when I close the pop-up. Consequently, I can easily rattle through well over 25 window closures in a day.

It's not necessarily that each window contains dozens of tabs and copious data, but nevertheless Firefox still treats it as a window 'within the meaning of the act'!

I just went to reopen one closed window from a couple days ago which did contain many tabs (partly why I closed it in the first place), only to find that the 'recently-closed windows' context menu is now only showing 20 windows (18 of which are the aforementioned pop-up assistive technology windows)

The really vital window that I want to reopen is not showing.

I've double checked in about: config and the browser.sessionstore.max_windows_undo is still set to 60 windows; nothing has been altered or reset.

I updated Firefox to 147.0.4 yesterday evening, but the problem existed before I updated Firefox, and is still in evidence since updating.

Two questions:

1) Why is the Recently Closed Windows context menu not showing the full number of windows it has been successfully doing with no problem now for months? I used to have to scroll down to access the full extent of the 60, but they were always there.

2) Why has it arbitrarily changed to 25 windows?

3) [I lied – Our chief weapons etc...] Is there a way that – given about:config still implies that the most recent 60 windows are retrievable – that I can access beyond the 25 windows limit that are currently showing as reopenable?

Thanks very much

(And yes, I already have things like OneTab and Tab Session Manager add-ons, but disabled those just before closing the important window, because I was trying to locate which add-on was draining the CPU. I assumed my 'recently-closed windows' buffer of 60 would suffice while I disabled the add-ons.)

I use several devices with Firefox installed and I find that sync is not always "sync"-ing, or at least not very often. I can confirm I am logged-in the browsers. I do tend to leave my laptops in sleep mode and maybe sync is triggered only at browser closing? Whatever the case, I end up having bookmarks that I deleted from another machine still persisting on another for some reason or adding a bookmark on one laptop and not having it on another even hour later. Would you please take into account the option to sync at certain intervals like minutes, hours etc and let the user pick how often they want this?

Thanks! Constantin

”Using my HP Notebook computer, BOOKMARKS (in Mozilla/Firefox): Who governs my access to my list, which disappeared on 2/20/2026. It looks like Google (i.e., Yahoo) has taken control of this function……….and, if I set up Sync on my computer, how will my current DEFAULT YAHOO EMAIL be impacted?”

I'm using Kubuntu 24.04. I saw it more than once. Firefox is frozen, no WiFi for example, and I have to kill it via terminal. After that it is not possible to retrieve the session (3 or 4 tab groups plus ~20 tabs)

thank you for any help.

As long as my computer doesn't go to sleep Im fine. If it does, when i open firefox, i must refresh to be able to find my bookmarks and passwords. What am I doing wrong? Thanks in advance! Micha

Dear Everyone, Facing issue with deploying Configuration Profile for Extension Settings via Intune. I have already imported the "firefox.admx and mozilla.admx". then i created the firefox Extension using OMA-URI as show below

OMA-URI: ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/ExtensionSettings

Value : <enabled/><data id="ExtensionSettings" value='{"*":{"installation_mode":"blocked"},"{d10d0bf8-f5b5-c8b4-a8b2-2b9879e08c5d}":{"installation_mode":"allowed"},"{5caff8cc-3d2e-4110-a88a-003cc85b3858}":{"installation_mode":"allowed"},"{d187b435-812e-4813-a93e-edccc4118f9d}":{"installation_mode":"allowed"},"uBlock0@raymondhill.net":{"installation_mode":"allowed"},"langpack-de@firefox.mozilla.org":{"installation_mode":"allowed"},"langpack-cs@firefox.mozilla.org":{"installation_mode":"allowed"},"langpack-en-GB@firefox.mozilla.org":{"installation_mode":"allowed"},"langpack-fr@firefox.mozilla.org":{"installation_mode":"allowed"},"langpack-ga-IE@firefox.mozilla.org":{"installation_mode":"allowed"},"langpack-it@firefox.mozilla.org":{"installation_mode":"allowed"},"langpack-pl@firefox.mozilla.org":{"installation_mode":"allowed"},"alterechtschreibung@gmail.com":{"installation_mode":"allowed"},"cs@dictionaries.addons.mozilla.org":{"installation_mode":"allowed"},"fr-dicollecte@dictionaries.addons.mozilla.org":{"installation_mode":"allowed"},"ga-IE@dictionaries.addons.mozilla.org":{"installation_mode":"allowed"},"it-IT@dictionaries.addons.mozilla.org":{"installation_mode":"allowed"},"pl@dictionaries.addons.mozilla.org":{"installation_mode":"allowed"},"de_DE@dicts.j3e.de":{"installation_mode":"allowed"},"de_CH@dicts.j3e.de":{"installation_mode":"allowed"},"ms.pad.firefox@microsoft.com":{"installation_mode":"allowed"},"ciscowebexstart1@cisco.com":{"installation_mode":"allowed"},"salesforceinspector@reloaded":{"installation_mode":"allowed"},"jid1-DBcuAQpfLMcvOQ@jetpack":{"installation_mode":"allowed"}}'/>

And also i created below one

Initial setup

   Download the latest release from our GitHub page and unzip the file.
   Open the file firefox.admx in an editor.
   Sign in to Microsoft Intune at https://intune.microsoft.com.
   Click Devices then Configuration (https://intune.microsoft.com/#view/Microsoft_Intune_DeviceSettings/DevicesMenu/~/configuration).
   Click Create on the Policies tab and then New Policy.
   Select Windows 10 and Later as the platform and Templates as the profile. Click Custom and then click Create.
   Type Firefox Configuration or any descriptive name.
   Enter an optional description.
   Click Next.
   Click Add.
   Enter a name like Firefox ADMX.
   Enter an optional description.
   For the OMA-URI, enter ./Device/Vendor/MSFT/Policy/ConfigOperations/ADMXInstall/Firefox/Policy/FirefoxAdmx.
   Select String for the Data type.
   Copy all of the text from the firefox.admx file into the Value field.
   Click Add. 

After deployed to production getting error -2016281112

Outcome is: Setting name: ExtensionSettings [./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/ExtensionSettings] ----error code -2016281112

2. FirefoxAdmx [./Device/Vendor/MSFT/Policy/ConfigOperations/ADMXInstall/Firefox/Policy/FirefoxAdmx] ----> Succeeded

Please help me on this to fix the issue

When Firefox updated I only created a default profile and could not or did not import bookmarks. They seem lost now. I was offered to import from other browsers like Edge but did not see any way to import from my previous Firefox version. I am unable to find any automatic backups in bookmarkbackups folder.