Fórum podpory Firefox

I've been professional web developer for almost 15 years. I've wanted to try to step away from Chrome, but I'm having a hard time navigating through basic functionality with Firefox's developer tools. One of those was a simple "Control + F" find feature. Am I missing something?

Specifically, lets say I want to search for a specific class within a style sheet. In Chrome I can bring up the dev tools, select the style sheet, Control + F, and it will give me a toolbar with options to step through each instance of the class. It gives me total count and I can hit the up or down arrow to cycle through each instance of that class (insert any selector here). I can also Replace an instance or all instances.

When I try this in Firefox's dev tools, I get the first instance but see no way to do anything else. If I hit enter it doesn't cycle through to the next instance but creates a line break in my style sheet.

I've researched with no success. I know there is the filter option but that isn't what I'm looking for in this case. Any help would be greatly appreciated.

Using FF 108.0.2 (64-bit) in Debian 11 Linux,I need to view http://www3.winsystem.org/monitor/webmonitor.php but my new laptop is very high resolution. I can control the text size with Ctrl+ but the background gif image of a small window with bogus scrollbar needs to be made larger somehow so that the white text can be read against the black portion of the image.

Is there some way to enlarge the gif image, please?