Showing questions tagged:

"Entry point could not be located in xul.dll"; Firefox crashes on startup after update, installer also fails.

The full error message is: "The procedure entry point ?WindowsBCryptinitialization@mozilla@@YA_NXZ could not be located in the dynamic link library C:\Program Files\Mozil… (read more)

The full error message is: "The procedure entry point ?WindowsBCryptinitialization@mozilla@@YA_NXZ could not be located in the dynamic link library C:\Program Files\Mozilla Firefox\xul.dll."

After accepting that, I get another message that says: "Couldn't load XPCOM." Then, it just quits, with no Crash Reporter dialog.

I downloaded a fresh installer, but it takes a couple minutes to even launch, and then just sits there for a long time on the initial screen doing nothing before saying the installation failed. I've restarted my computer twice hoping it was a one-off issue, but there's no change.

According to the file information, xul.dll was last changed September 3rd, so it may not be the source of the issue. Perhaps whatever name mangling is responsible for the above entry point changed and now they don't match?

I have automatic updates set to "download but don't install", so it downloaded it a few days ago and I just restarted it this evening and the issue occurred. I could understand that maybe something got corrupted during the update, but I have no idea how the installer could also be failing.

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Open link to upload file, now it is defaulted "Download" folder, it used to be last folder used.

This is killing my efficiency, I upload many files in the order i see fit, I select the folder, I upload the file, I open the link again to upload, it takes me to the s… (read more)

This is killing my efficiency, I upload many files in the order i see fit, I select the folder, I upload the file, I open the link again to upload, it takes me to the same folder. Not anymore

Now, with every upload no matter what folder I am in it takes me to "Download" folder, this change just happened on 10-8-26. Open link to upload file, now it is defaulted "Download" folder, it used to be last folder used.

I dont have this issue when I upload in chrome.

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How does Firefox fullscreen mode work for mouse-controlled browser games?

Hello, I’m the developer of SnakeGame.Live , a browser-based multiplayer snake game with mouse steering on desktop. I would like to understand the difference between Fire… (read more)

Hello,

I’m the developer of SnakeGame.Live , a browser-based multiplayer snake game with mouse steering on desktop.

I would like to understand the difference between Firefox’s F11 fullscreen mode and fullscreen activated through a website’s Fullscreen API.

For a mouse-controlled game, do these modes behave differently when the pointer reaches the top edge of the screen? Is there a recommended way to let players use fullscreen while keeping Firefox’s normal exit controls available?

I’m using Windows 10. I would appreciate guidance on the expected Firefox behavior and any relevant support documentation.

Thank you.

Open

where is my VPN botton ?

hi all , i have problem with my windows and go for clean install ,, when i install Firefox and restore my back up i see no VPN beta button on my browser i have that befor… (read more)

hi all , i have problem with my windows and go for clean install ,, when i install Firefox and restore my back up i see no VPN beta button on my browser

i have that before and its work so smoothly

i search alot and see no result , so if you can help me , do it please , because VPN like this in here it means freedom :D

have a fun life to you all

bye

Solved 3

my tabs disappeared. how do I get them back? Can't restore previous session?

My previous session is not clickable. All 50 or so tabs are gone!?? HELP! How do I restore a previous session w/ older tabs? (History doesn't show tabs from months and… (read more)

My previous session is not clickable. All 50 or so tabs are gone!?? HELP! How do I restore a previous session w/ older tabs? (History doesn't show tabs from months and months ago).

M

Open 1

I downloaded Firefox 155 and my book marks disappeared? Where are they and how do I get them back?

Hi, I wrote about a month ago and didn't get help in recovering my lost bookmarks. I've spent the month looking at .JSONLZ4 files to see if there was anything there, not… (read more)

Hi, I wrote about a month ago and didn't get help in recovering my lost bookmarks. I've spent the month looking at .JSONLZ4 files to see if there was anything there, nothing I could find. I've gone through all the suggestions and haven't found the bookmarks. I have limited time on line, and appreciate the volunteers' time in addressing this issue, any help you can offer is greatly appreciated. Thank you! Mark

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how do i find my last session after uinstalling Firefox?

i accidentally uninstalled Firefox and lost my session, i have Tab Session Manager but it seems that the uninstallation also deleted the saved sessions in there... can an… (read more)

i accidentally uninstalled Firefox and lost my session, i have Tab Session Manager but it seems that the uninstallation also deleted the saved sessions in there...

can anyone please help?

Open

"Always Ask" is NEVER ASK for file downloads!

On all my PC's, (Win 10 & 11) downloads go to the folder I specified even though "Always Ask" is checked. This results in hundreds of files (statements, receipts, doc… (read more)

On all my PC's, (Win 10 & 11) downloads go to the folder I specified even though "Always Ask" is checked. This results in hundreds of files (statements, receipts, documents of interest) that I have to then move to the correct folders and unimaginable congestion and chaos in the directory.

I (and many others) would really appreciate it if FF would give priority to fixing some of these longstanding glitches, rather than pushing unneccessary and unneeded glitz on us.

Open 3

i am trying to access a site that is secure to drop a document

Server Not Found Firefox can’t connect to the server at legalfolder.sce.com. What can you do about it? Check to make sure you’ve typed the website address correctly an… (read more)

Server Not Found

Firefox can’t connect to the server at legalfolder.sce.com. What can you do about it?

   Check to make sure you’ve typed the website address correctly and try again in a few moments.
   Check your network connection.
   Check that Firefox has permission to access the web (you might be connected but behind a firewall).
Open 1

Firefox continually crashes on my Windows 10 machine

Firefox (currently 157) continually crashes on my Windows 10 machine. Task Manager shows Firefox downloading sub apps (currently, 11) until memory is full. Then Firefox c… (read more)

Firefox (currently 157) continually crashes on my Windows 10 machine. Task Manager shows Firefox downloading sub apps (currently, 11) until memory is full. Then Firefox crashes. Task Manager shows 11 sub apps open right now using 537Mb of memory. I opened in troubleshoot mode. If I open in normal mode, more than 1Gb will be used with 14 or 15 sub apps downloaded. Only two tabs are shown as being opened. This started with one of the earlier updates and newer updates didn't fix the problem. Even emptying the cache didn't help. Do you recommend totally deleting Firefox and starting over from scratch?

Open 1

Cannot open PDF on Sciencedirect; page stays blank after clicking "View PDF", works fine in Edge.

I am using Firefox 157.0.1 (64-bit) on Windows 10. When I browse papers on https://www.sciencedirect.com(https://www.sciencedirect.com) and click the "View PDF" button, t… (read more)

I am using Firefox 157.0.1 (64-bit) on Windows 10. When I browse papers on https://www.sciencedirect.com(https://www.sciencedirect.com) and click the "View PDF" button, the page that opens is completely blank. The same PDF loads normally in Microsoft Edge.

I have already tried troubleshooting steps: I cleared cookies for this website and disabled Enhanced Tracking Protection for [sciencedirect.com](https://sciencedirect.com), but the blank page issue still exists.

Thank you for your attention and assistance.

Solved 1

Need to recover my password for recovering backup Firefox browser, after a firefox initiated update, which failed.

a Firebox forced update in the middle of a meeting failed. Somehow during reloading the new update, it failed and offered me to reset to default, which lost all my saved… (read more)

a Firebox forced update in the middle of a meeting failed. Somehow during reloading the new update, it failed and offered me to reset to default, which lost all my saved setups and URLs. It then offered me a last saved setup, but required a password which I cannot remember having setup

Open 1