Форум поддержки Firefox

In my Firefox settings, I have PDF files set to "Open in Firefox".

When I click on a PDF file, Firefox DOES open the PDF in a new browser tab, but the PDF ALSO downloads to my desktop (both!). How can I stop it from downloading?

Hey all , i made backup via "export passwords" via password tab and i came back to my pc to and tried to import via csv file but when i pick my csv file nothing happens , any ideas ?

Mailto is missing from my applications section in Firefox settings. How do I add it back in? I've done an online search but nothing I found worked.

I'm having difficulties adding an image but this is what is listed in my Settings - General - Applications: Under Content Type, I have: Portable Document Format (PDF) Extensible Markup Language (XML) Scalable Vector Graphics (SVG) WebP Image AV1 Image File (AVIF)

I tried searching applications for mailto and gmail but I get no returns.

Does anyone have any suggestions?

I use HTML files to create images for a tile based game we play. 6 months ago I was able to create a table with collapsed borders and 0px padding, margins, and borders, then draw my image with 207 x 207 JPEG TDs in multiple TR rows, then place another GIF image over all the JPEGs with transparent edges. Doing this for a table that was 6 tiles (207px) wide and 4 tiles deep, at ctrl 0, displayed a Firefox combined image that was exactly 1242px x 828px that was completely visible on 24 inch 1920 x 1080 DELL monitor. This allowed me to right click an empty space on my Firefox screen and select Take Screenshot to click on the GIF overlay image and capture that image with all of the tiles that were behind its transparent edges.

For some reason, I have no idea why, my 207px by 207px tile images are now being displayed as 282px by 282px at ctrl 0, and the overall image is now too large to fit on the screen, so taking a screenshot of the proper sized image is no longer possible. For example, at ctrl- ctrl-, the tile images are 221 pixels square, which should be 1326 pixels wide for 6 tiles, but my 1242px wide GIF file displays at 1330 pixels wide, probably due to some kind of rounding error.

I was able to use about:config and change layout.css.devPixelsPerPx from -1.0 to 0.74 and it did solve the problem. But it does so with a lot of warning for changing that default value!

So my question is simple: how does Firefox, on Windows 10, determine its screen pixel to Image px relationship? I need to know what to look at for the proper way to get my px to pixel ratio back to 1 to 1.

This is what the working image looks like while designing the center scoreboard tile https://user-media-prod-cdn.itsre-sumo.mozilla.net/uploads/images/2022-08-23-13-36-34-2fa67f.png

and this is what the final image looks like when you take a screenshot of the image https://user-media-prod-cdn.itsre-sumo.mozilla.net/uploads/images/2022-08-23-13-36-53-beae42.png

I am attempting to import server certificates into Firefox. But the "Import" button does nothing when viewing certificates. Any work around? I need to import our server certificates into the Authorities section.

Ubuntu 22.04 Firefox installed through snap. Version 104.0 just upgraded this afternoon.

Thank you, James

Firefox crashes (tested in troubleshoot mode) for this URL : Link which causes crash https://developers.google.com/android/guides/opensource#java

There are no crash logs generated either (checked in about:crashes) . Attaching a post-crash dialog screenshot

When I try to log in to any Google "Ecosystem" (i.e Gmail, Youtube etc.) I see it (check screenshot below). I'll use Firefox Developer Edition. In vanilla Firefox and other browsers, everything works as usual.

I'm coming from Chrome to Firefox, one feature where getting distracted is open multiple bookmarks using CTRL/CMD + clicks

How Google Chrome works Bookmark menu visibility don't lose

How Firefox works Bookmark menu visibility loses

Is there way I can configure this same as Chrome.

Please see the attachment for demo. PS: I'm using latest versions