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TB started giving the message, "Your computer must be restarted to complete a previous upgrade of Thunderbird. Do you want to reboot now? (Yes)(No)" I rebooted. Now everytime I try to launch TB I get the same message. Reboots don't solve it. TB won't launch. I suspect a TB 15 upgrade bug. How do I get TB to launch? If I do an uninstall, will I lose my address book(s) & subfolders?

I now have a visible sidebar, after installing the latest update. The 'help' section says to click on the 'settings' icon in the sidebar. I have no buttons, at all, in the sidebar. It is blank white. How do I remove this thing?

On YouTube tabs, if Firefox memory usage starts climb (ie. more than 3-4 tabs active), there are janks for a few seconds preventing me from interacting with the YouTube tab. This jank does not happen with other tabs (can even interact normally with other tabs while the YT tab is janking). Attached is a profiler report.

https://share.firefox.dev/41OGyga

I am trying for days to get my Yahoo! email to stay signed in on my desktop using Firefox. It has been fine for years, but last week I had to clear cookies and history to solve a completely different problem and now I have this problem instead. I have read articles, searched the web, and I am trying to find "options, set yahoo as my email" (or something like that I read) but I cannot find it in yahoo OR Firefox. please Help! thanks in advance, but hurry.

I have been facing a problem with custom images of home page shortcuts. Whenever my laptop shuts down and Firefox was open at that time, then upon restarting, Firefox recovers the websites that were open before shutting down. However, in this process, the shortcuts do not load the custom images at all - they are all blank. I created a new profile and started everything from scratch then also the issue was there. Is there any solution to this, or is there any issue that might be from my end?

In the year 2024, firefox still does not allow a simple way to set any URL you would like as the new tab url (without an extension).

Users were previously able to use extensions like NewTab override to have a relatively seamless experience changing their new tab page. However after certain changes, these said extensions can no longer set your new tab page to a local file, and can also no longer clear and focus the address bar.

I am simply requesting a feature within firefox to set a custom new tab page, without having to create any external configs, or without using any extensions. This basic feature has been available in chromium browsers for years, and firefox already includes a feature just like this for the "Homepage and new windows" setting, where it allows you to input a custom URL to a local file or site to put it as your homepage. However, this same setting for some odd reason does not exist for the "new tabs" option. Why is this?

As of now, I've had to use a manual override along the lines of this:

``` // shenanigans for setting a different new tab page const { classes: Cc, interfaces: Ci, utils: Cu } = Components; const { AboutNewTab } = Cu.import("resource:///modules/AboutNewTab.jsm", {}); // path to new tab can be a url or file const newTabURL = "file:///home/faaris/.local/packages/startpage/fazzi/index.html"; // set the new tab URL AboutNewTab.newTabURL = newTabURL; ```

this should not be needed. Having to modify files in system protected folders should not be needed for such a simple option.

Hello, I have all of my bookmarks organized in folders but now all of those folders are on the bottom instead of the top in the menus.

I used to be able to move them around by dragging them but now I can't move them back to the top.

Thanks 😊

Android 14 firefox 133.0.3 (Build #2016060959), hg-7ed49fe90e84+ GV: 133.0.3-20241209150345 AS: 133.0

I'm running Firefox 122.0.1 on a Windows 10 desktop PC, with a profile which includes a userChrome.css file which makes several layout and cosmetic changes.

I also have a laptop (also Windows 10) which has an old Firefox 97.0.1 installation, and I'd like to make the same changes on this machine which I'm used to on the main computer. I copied my desktop profile to the laptop, to the same directory as its present profile, but when I rebooted Firefox the transferred profile wasn't recognised.

While doing the transfer I received error messages about some of the folders: Destination path too long. This despite the fact that the registry flag to accept extended paths is set to 1. I had to skip several folders in order to complete the transfer.

Could this be the reason why the new profile isn't being picked up? Or is it because the two Firefoxes are of different versions?

I'd be grateful for any thoughts. Many thanks.

So I'm in the process of switching to Firefox again now that native vertical tabs are an option. I'd like to be able to drag maximized windows by just flicking my mouse to the top anywhere and dragging, but it won't allow me unless "Menu Bar" or "Title Bar" is enabled. I'd rather not enable either as I like how it looks without them...

I did manage to add the space I wanted by adding this to the "userChrome.css" file:

1. nav-bar {

margin-top: 15px !important; }

but it seems to only be cosmetic and won't allow me to use it for dragging the window...

Firefox has suddenly started to ‘crash’ on startup, I tap the icon, a black screen with the Firefox logo appears for an instant then disappears. I tried to restart the app, then the iPad, then I deleted, restarted the iPad and then reinstalled the app again, no change. I have installed Firefox Focus which does launch but doesn’t have my tabs etc…Firefox still working on iPhone

on iPad Pro 11inch running iPad iOS v18.2