Firefox Support Forum

Recently, I switched to Fedora 39. At first, Firefox was working fine, but after I logged into my Firefox account, the fonts of some languages stopped rendering, and this started happening with almost every site that was using system fonts.

Version 126.0 (64 bit) Mozilla Firefox for Linux Mint mint-001 - 1.0

I use a wireless keyboard and mouse via a USB connector. History - I have had to reboot to clear the mouse interface error when it occurs for many months. I've had a open issue in the linux mint forums as I thought it may be a driver issue. Things worked tolerable until 5-29-2024 as my wireless mouse has been deactivated. I opened a second window(tab) in a new window and my wireless mouse permanently no longer works. It was quite startling. The wireless keyboard is fine. A wired USB mouse works. My HP laptop mousepad works. However, once the error occurs mouse clicks are no longer responded to and the active area remains the partial window where the mouse was last active. Currently the mouse cursor does not respond to movement inputs from the wireless mouse, so seriously worse.

Have the mouse settings or driver have been tampered with?

Since the latest update, when I right-click on a bookmark or an item in the history list (from the menu or the bookmarks toolbar), I still get the menu that has items like "Open in new tab" or "Edit Bookmark".

However, the focus for the mouse stays on the previous menu, so that I can't click on anything in the "right-click menu", instead it is interpreted as a click in some random item in the previous menu.

Going into troubleshoot mode didn't help, so I don't think it's my configuration causing this.

Hi. Randomly, but very often, I cannot drag and drop move tabs. Other moving (p.e. "move to beginning") does work. After restart of Firefox, it works again - till it randomly does not.

Current Firefox (126.0) Kubuntu Installed via Snap

Firefox spawn too many child processess, with cause the browser to freeze.

Proposed solution:

Reduce to absolute minimum the spawn child processess. The value should be set according to the device performance and additionally show allow the user to set manually the limits.

Example: 1 (maximal 3) child process per tab/window

Hey,

I have previously exported my bookmarks in an HTML file. When reinstalling Firefox, I tried to import them using the HTML backup file. It says that 309 bookmarks have been found, but nothing changes on the bookmarks bar, still showing the "Import bookmarks" bookmark. These are very important bookmarks I would really like to get back, can you help me please ?

Hello, I have a problem: After an automatic update of the language packs, parts of the Firefox menu (version 126.0) are displayed in EN. Parts in DE. Seems to be related to the update... how can I change this again? I have already changed the language settings. Didn't help...it appeared after an automatic update on May 28. Thanks for an idea :)

I was in the middle of asking this question when I fixed (worked around) the problem so I'm posting more as a informative post as there is a lot of old misdirection out there now.

I am(was) unable to drag any URLs from the URI drop down field in the main interface to my bookmarks toolbar. Nor was any drag and drop functionality working in the "Customise Firefox" screen (right click space on url bar -> Customise Toolbar).

I have now found that resetting my zoom setting in preferences to 100% restores this functionality. The problem arose when I was using 120% zoom, NOT text only.

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Hello,

I'm developing a web application. Yesterday I could access it with http://localhost:8000, then, I implemented https and it worked too. Today I needed to use http again for my tests, but everytime I type http://localhost:8000, Firefox changes it to https://localhost:8000.

I already tried to clear everything in the history, even the cookies, but it didn't work.

What should I do?

Also, could you fix this bug? I've found articles from 5 years ago reporting this issue, but the bug hasn't been fixed yet

Sometimes drag functionality stops working. I can't grab a tab to move it to another position or to a new window. (Holding left click on the tab and moving the cursor does nothing). Also, re-merging the tab with another firefox window stops working. (Dragging a tab to a firefox window from another firefox window doesn't merge them. It does nothing) I can right click on the tab and select Move to move it to a new window but dragging stops working. I have to close Firefox and start it again (sometimes twice), then dragging starts working again. This happens multiple times a day. I am on Linux Mint and the version is 126.0 (64-bit). This problematic behavior has only recently began.

Here is my crash report. https://crash-stats.mozilla.org/report/index/ac6dbca9-a495-4b78-a72f-8102b0240528#tab-details

Based on https://gitlab.gnome.org/GNOME/glib/-/issues/2833, I gather that this crash happens when you have some malformed xdg-mime data. I'm trying to figure out what data that is and where it's stored so I can fix it.

The crash report doesn't show me the arguments, so I can't tell what mime type it's trying to load. Maybe it's not available due to the way the library is built, or maybe it's not available due to the crash report hiding potentially private data. Or both. Can anyone tell me how to see what mime type it's looking up? Or do you know what mime type it would be looking up when saving a PDF? `xdg-mime query default application/pdf` works fine so it's not just looking for a handler, there must be some sort of weird "MIME type" for "file browser" that it's trying to use.

Hi all!

A while back I downgraded my Firefox version to some old version to be able to access a FortiGate 310B. However when I upgraded back and started using the latest version my search completion stopped working, but my search completion is turned on. It shows things I've already searched for, but it's not fetching new completions. I lived with this for a while since I couldn't be bothered to fix it, but I recently moved to linux, and copied all my data, I did this by just copying the profile folder and moved into into a new profile I created on linux. It worked, my bookmark, history, passwords etc are saved, but still no completion. I tried creating a new profile and the search completion worked perfectly fine. Do you guys have any tips or things I could try? Or do I just give up and move to a new profile, since this one is presumably corrupt?

Any help is appreciated, cheers :)

After the last upgrade Firefox has a strange ~6 pixel wide dark border. How can I eliminate that border?

Thanks. :-)

Firefox: 115.11.0esr OS: openSUSE Leap 15.5 KDE-Plasma-Version: 5.27.9 KDE-Frameworks-Version: 5.103.0 Qt-Version: 5.15.8

Firefox uses about half a gig on my disk, that's: '~/.mozilla' and '~/.cache/mozilla' can that be reduced? Either some setting that limits disk use or even a manual deletion of ancient stuff?

Tell me why google says this:

Unable to connect

An error occurred during a connection to www.googleadservices.com.

   The site could be temporarily unavailable or too busy. Try again in a few moments.
   If you are unable to load any pages, check your computer’s network connection.
   If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the web.

when I click on an advert for a product provided (I assume) by google at the top of search results. I have cleared the cache and cookies. Latest firefox on ubuntu 22.

After updating to the current version of my OS(listed below) I can no longer drag a tab to detach it from the firefox window. Doing so drags a preview of the tab, but it is never separated from the current window. I can drag it to an already existing window to move tabs from one window to another, but not to create a new window from a single tab.

OS: Manjaro Linux 24.0.0 Wynsdey Linux kernel version: 6.6.30-2-MANJARO (64-bit) Desktop Environment: KDE Plasma 6.0.4 KDE Framework version: 6.1.0 QT Version: 6.7.0 Display Server: Wayland Firefox version: 125.0.3 (64-bit)