Firefox Community Forum

Issue: Rapidly scrolling up or down often creates an unintended blank space (margin) at the top or bottom of the tab list.

Symptom: When this gap appears, the mouse cursor's focus becomes misaligned with the actual tab selection point by the height of that gap.

Behavior: Scrolling back toward the gap usually forces it to disappear, which also restores the correct alignment between the cursor and the selection point.

Reproducibility: The exact trigger is inconsistent. While it happens most often during fast scrolling, it sometimes occurs during slow scrolls as well. The frequency is unpredictable—sometimes occurring every time, and other times once in five attempts.

I just lost ALL my open tabs AGAIN!!! This's the 3rd time !!!!! Restore previous tabs IS NOT IN THE Menu > History AGAIN per Mozilla's method!! Frankly, I'm tired & overwrought this keeps happening WHEN IT'S NOT SUPPOSED TO!!

Now what cor-el?? I certainly hope you've a corrective answer. dCβ (;>{

I LOVE y'alls new splitscreen feature, BUT I also noticed ya'll put the X on the tabs so that at any time even if unselected, you can close it; Is there any way to make that x appear only when selected because the main reason I used firefox in the past was because middle click was it's own dedicated way to close tabs making selected tabs literally careless and SIGNIFIGANTLY time efficient, but now that that x is on the tab at all times, it gets in the way and IT'S MAKING ME CLOSE ALL MY SPLIT TABS. Please, as a loyal firefox user, with either tell me how to remove the x's or please make it an official option to have them off. Thank you for your time.

Вопрос, думаю, миллиона пользователей: вы когда-нибудь планируете за годы работы сделать так, что бы если ты закрыл основной браузер до закрытия безопасного режима, вкладки в обычном режиме НЕ закрывались?! Сделайте окно проверки, если не можете реализовать, что бы человек прочитал сообщение и НЕ закрыл обычный режим ДО закрытия безопасного? Почему другие то могут?

1. 1. Steps to reproduce

Open several tabs, in settings, check «ouvrir les fenêtres et onglets précédents», quit firefox.

1. 1. 1. Expected behavior

On startup, Firefox should reopen with the same tabs before shutdown.

1. 1. 1. Actual behavior

Firefox opens with one empty tab. Forcing me to got to «history -> recently closed windows -> restore» everytime I quit Firefox or shutdown the mac.

1. 1. 1. Device & build information

• Device: MacOs Tahoe 26
• Build version: firefox 148.0.2
• First seen version: MacOs Sequoia

1. 1. 1. Notes

Fresh migration from Win 11 to Mac. tabs, passwords, bookmarks, plugins migrated from win to mac. Attachments:

I use tab groups actively and would save much of my work in my ever-growing list of tab groups. I saw today that many of them had disappeared. I wasn't signed into Firefox and nor do I have any different profiles made. I see two tab groups that I made yesterday but none from before that. How could this happen? How do I recover so much of the work I had saved up?

dear sir/ mam:

like in safari, i had pinned the websites (as tabs) i visit regularly.

when i restarted the browser, all tabs were gone.

i have been using this feature in safari since a decade and no pinned tabs have been lost.

please guide.

All of a sudden Firefox stopped reloading my previous tabs when I start Firefox (whether or not it is set to open automatically on start up). I have ensured the relevant boxes are ticked and I have even reinstalled Firefox altogether - and all to no avail.

I am using Firefox on a W11 64 bit desktop. I have used it for years and have never had this problem before.

I have vertical tabs enabled and the "expand when hovering mouse" option is activated (see screenshot). However, the latter functionality tends to glitch at some point in basically every session. I can't tell if a specific action triggers it, so far it seems pretty random. The glitch is that either the tabs are expanded and won't collapse, or the opposite: they're collapsed and refuse to expand when I point at them. Is this feature maybe still experimental? or something? I'm running Firefox 149.0b5 DEveloper Edition on Garuda Linux (Arch based).

I open firefox and open two or three tabs. Than I check task manager, because my computer is running warm and I find firefox has opened 12 to 20 tabs. I have tried every suggested fix for this problem with no resolution. Can you provide a fix for this problem. I have the same problem on my Lenovo laptop as well.

Thank you, Michael Rozelle [edited email from public]

I tried unchecking and rechecking all start settings. When I close Firefox, it asks if I want to close all tabs - the only option is to cancel, leaving Firefox open, or Yes, which would close all my tabs and not reopen the tabs on startup.

My recent history is also missing.

I upgraded to a new Surface Pro 12 and now when I launch Firefox it won't open my previous tabs and windows even though I've checked the box "open the previous windows and tabs" under the General/Start Setup. On my previous Surface Pro 3, I never had an issue with this. Am I doing something wrong..? Also when I click on the time in the lower right task bar, it would open the time plus a calendar. Now with the Pro 12 I get the time and a notifications window and no calendar. Is there a way to change Firefox to the way it was on my old Pro 3..?