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I want to turn off the hover preview feature. First I went in settings, but that disabled only the thumbnail (browser.tabs.hoverPreview.showThumbnails in about:config is set to false and saved). Then I went in about:config and manually set browser.tabs.hoverPreview.enabled to false as well, that disables the unwanted feature completely.

But every time I restart the browser it's turned back to true (just hover.Preview.enabled, not hover.Preview.showThumbnails). Can I save my settings? It's annoying that I can't opt out.

I absolutely hate the new ui and there is no option to change it either

Also not showing full link in search bar is kinda stupid...not even a option to enable it either

Reported 2 bugs in bugzilla 1 year ago....no fix till now The countdown on website still doesn't work in background(https://bugzilla.mozilla.org/show_bug.cgi?id=1848178)

I just noticed after an update today that the Mobile menu entry (with bookmarks from my mobile Firefox instances) no longer appears in the browser's Bookmarks menu. I can access them from the bookmark manager, but this change seems extraordinarily stupid and arbitrary and is a definite step backwards.

When I copy something to my clipboard I can paste it into Firefox. Into web pages and also into the URL bar.

But when I copy something in Firefox, it does not go to the clipboard. The clipboard still hast the content which was already there.

Also strange: When I cut text in a textarea, input element or the URL bar, the text is removed. But it is not sent to the clipboard. When I cut and paste, the text I get is what was previously in the clipboard.

What could be the cause? How can I debug this problem?

Hello - I've noticed lately that when I type a search, sometimes Firefox does nothing. It doesn't pull any results, it acts like I've done nothing, but I can see the search terms I typed in the address bar, separated by + symbols. It simply doesn't go anywhere and doesn't perform the search. I do a lot of searching when I'm working and this happens approximately 1 out of every 15-20 searches. I've attached an image where I opened a new tab, typed my search term and it remains on the homepage. You can see the search terms in the address bar.

I use Mozilla on two things, my laptop and my android cell phone. The syncing on my cell phone appears to work perfectly well. However, when I am on my laptop, I am unable to view my "Tabs from Other Devices" - It will show me tabs from days ago. I've tried manually syncing on both devices but nothing happens.

The only thing that seems to work is if I log out of my Mozilla on my cell phone and log back in but then it will stop syncing again.

If something else isn't syncing, I honestly don't notice because I don't use anything else much.

A white horizontal line in the top of the screen, whilst watching movies in tv5mondeplus.com. This issue happens when installed the recent update 129.0.

Tested in other browsers and doesn't appear the white horizontal line on top.

As a Chinese user, I am very dissatisfied with the inability to use the translation function. I request to add a Chinese option to the Firefox translation package. Thank you!

As the title says, I got a problem with Android version of Firefox that sometimes on some webpages it just hangs and doesn't load the page at all. While it's hanging there if i try to open extension settings it doesn't even load that, just opens blank page. Only way around it is to close tab and try again later. Sometimes i can just close tab and on next try it works, sometimes it just doesn't. I've had same issue with PC version of Firefox and it seems to be fixed after disabling HTTPS over DNS. On Android I've tried changing network.trr.mode to 5 but with no luck. Also ive tried disabling extensions and changing some options but whatever I do it just still keeps happening. Btw its a new install after years of not using Firefox, perhaps because of the same issue.

When I play any video on https://www.bilibili.com/ this chinese website After finish the video,The Firefox get white screen and crash And this happen every single time, There is nothing I can do The crash log is here: bp-c489f92a-e918-43ba-ab0b-589210240812

I accidentally closed Firefox with about 100 tabs open (doing research). I still had one ff window open with only one tab and I went to History (there is no session restore on my firefox-been thru that before) and selected restore recent tabs. That only opened about 10 tabs . BUT, now that becomes my " previous session" so how do I get my earlier session back. If I close FF and then open, all I get is that window with 10 useless tabs. This has happened before so I have FF set as default, and "open to previous window/tabs is selected". So how do I get my previous session open?

bold textdownloading only produces " .part " files in my downloads directory. I had previously attempted a large file download but error message said it was not completed. Now cannot download anything

I have been using Firefox as my primary browser in Windows and Linux Mint for many years, and I have always found it to work when other browsers would not. Recently (last few months) functions in Ancestry.com stopped working. I thought that the problems were within the Ancestry system, and getting help within Ancestry was very difficult. I finally got a help chat session a short time ago and learned that everything in Ancestry should work using the Chrome browser. Very reluctantly, I loaded the Chrome browser on one of my Windows 11 computers, and suddenly all of the functions within Ancestry worked properly. I sincerely hope that FIrefox will soon resume being fully functional with Ancestry.com.

Even though my laptop, tablet, phone and PC have the language settings set to English (GB) my Firefox across all platforms has changed from displaying English results to displaying results in French. I have gone through and changed all my language settings in and outside of the browser from English (Canada), to English (GB) to no avail. It still shows up in French. and I have had an French to English translator popping up when searching in Firefox. I can't see anywhere else to change the language. Everywhere I see, it says English (GB), but still displays French headings to the searchs. Any help will be great. Thanks.

After my Windows 10 laptop being in sleep mode I found my background picture changed and all my Firefox tabs missing (while my bookmarks, add-ons, history etc. saved, and all other apps functioning properly). Recently Closed Windows menu was inactive and using Restore option in Library had no effect (despite availability of recent saves).

I found out that Mozilla folder was just missing in %appdata% (e.g. Profile Folder in about:support leaded to a non-existent directory). No manual changes to Firefox settings/data were made and no new profiles created.

What might be the problem and are there any ways to restore my tabs?

I don't like the default homepage provided by Firefox, so I found an extension that can offer better tabs. But when I open Firefox, my homepage doesn't show the page provided by the extension. It's still Firefox's default homepage. Only when I open a new tab will the page provided by the extension appear. Also, the settings don't offer the option to replace Firefox's default homepage with the page provided by the extension. I need to replace the homepage from Firefox's default homepage to the tab provided by the extension.