Firefox Community Forum

(This is copied nearly directly from a post on r/firefox made a few hours ago—I decided it was best to spread it here for more exposure. The only change was the removal of the add-on names from the title due to character limits; these are Form History Control and Text Area Cache.)

I hope the title explains what I am looking for well. My main computer has had... spooky behavior with its file system recently, and I have been recommended to make a back-up, format my drive, and re-install my operating system (possibly upgrading from Windows 10 to 11 in the process). The biggest hold-up to me doing so is this, as I have no idea how to transfer the extension data between installs, or convert it into a human-readable form. The sheer number of writing drafts in those extensions both make losing them an unacceptable situation and copying the data manually into a document entirely impractical. So, can anyone help me with this? For context, I was on Firefox 138.0 when I stopped using my main computer due to those issues. (Note: It will certainly last long enough to do the Firefox Syncing and other back-up operations, just not for many more weeks or months.)

Hello all.

I chose "Use Adobe Acrobat Reader" for open PDF in settings and it works fine until I closed Firefox and open it again. The setting bounce to "Open in Firefox". Then, I tried choosing "Always Ask", closing Firefox and opening Firefox again. The setting preserved as "Always Ask" and did not bounce to "Open in Firefox".

I checked handler.json in user profile folder after I chose "Use Adobe Acrobat Reader" for PDF, action is 4: {"defaultHandlersVersion":{},"mimeTypes":{"application/pdf":{"action":4,"extensions":["pdf"],"handlers":[{"name":"AcroRd32.exe","path":"C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Reader\\AcroRd32.exe"}]}},"schemes":{}}

But then after restarting Firefox, it changed to 3: {"defaultHandlersVersion":{},"mimeTypes":{"application/pdf":{"action":3,"extensions":["pdf"],"handlers":[{"name":"AcroRd32.exe","path":"C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Reader\\AcroRd32.exe"}]}},"schemes":{}}

Checked handler.json with "Always ask". Before and after restarting Firefox, action is 1, which is expected and correct.

Some other colleagues reported the same issues as well. I am thinking if this is a bug from Firefox.

Some more notes here:

• The issue only happens to PDF, for other Content types, all good.
• Already disabled all plug-ins and extensions.
• Tried refreshing Firefox in safe mode
• Tried choosing another external PDF reader Foxit
• Firefox version is 140.0.2

Some screenshots are attached showing where it is.

Hope someone can help on it. Thanks in advance.

I don't think I chose the right topic, but here goes. With every Firefox update, my bookmarks and everything always seemed to merge into the new update. My computer rebooted with updates today, and I get into Firefox to find that NONE of my bookmarks made it this time.

Everything is empty, and I don't have a backup anywhere because I didn't expect this. Yes, I know - always back up everything but honestly, I haven't had time.

Does anyone know how to fix this? Are my bookmarks hidden somewhere?

I have a lot of stuff for research for writing stored in my bookmarks, and I can't lose them.

Thank you for your help!

where can I set my default location in Firefox? Windows 10 (desktop) has removed Maps so the computer's default location cannot be determined, and now Google Maps in Firefox has the wrong location for this computer

In FF, in the password utility, the entries are sorted by domain. That establishes that a domain sort is possible.

However, every export utility I have encountered, if it sorts at all, sorts by line.

One use I make of a printed copy is as a maintenance markup document. Some of my accounts - eg mozilla.org - have multiple access addresses in the same domain. A line sort scatters them, and I need to somehow collect them.

Would it be a big effort to output sorted by domain?

TY

Recently I had to rebuild my PC Windows 10 .

However Download speeds in FIREFOX are very slow, 10Mbs BUT Microsoft EDGE browser runs at 50Mbs. What is going on? I have Relinstalled Mozilla several times but no luck THUNDERBIRD works - but I have no way of measuring its speed.

I have followed all the suggestions from COPILOT with no success

Any suggestions would be helpful

Recently the options to customize what I'm seeing on my Firefox Home page are gone, but only on one PC (running Windows 10 pro). On my laptop (Windows 11 home), I can see my settings just fine. I tried resetting, then uninstalling and reinstalling Firefox but that didn't solve the issue. I've also disabled extensions.

"I just uploaded a new version of my Firefox extension, but it’s not updating for users who already have it installed. Is there something I might be missing? Shouldn't the extension update automatically? How can I ensure that users get the latest version?"

Apparently, there was a Windows Update last night (Windows 10). Bookmarks disappeared on Firefox. Went to Manage Bookmarks tab. Went to Import and Backup. Then Restore. There's a prompt to Choose File, but nothing appears. Also, on the left side of the Library window it is blank. On a support page, it showed some sort of list of bookmarks. Nothing like that when I pull it up.

Just switched from PC to Mac and miss the Page Up, Page Down, Home and End buttons. Wondering if there's a Firefox addon or extension to add these functions to a Macbook. I've searched but not found anything. I know I can't be alone in wishing for this!

(I am aware of using "Fn" and the arrow keys on a Mac to do page up and page down, but they are opposite sides of the keyboard and require both hands to scroll by page.)

I keep getting a message that Firefox is running but it’s not in my task manager.

I can’t uninstall it without closing it but I can’t close it while it’s running.

I've powered off and on and I've done everything I read online to do but keep going in circles.

I could not join a Google Meet meeting today with either an old or new Google Meet url. I don't have a problem with other sites. What could be wrong? Could Firefox be blocking it?