SPARCHER.TechBlog

2017-01-31

HOWTO: quickly restore a deleted bookmark in Mozilla Firefox

If you have accidentally deleted some bookmark from your Mozilla Firefox bookmarks collection, you can quickly restore it. No need to close the Firefox browser and restore backup files manually.

Just open the bookmarks library: <Ctrl> + <Shift> + <B>
1. (sometimes (e. g., in GNU/Linux), you should use another hotkey: <Ctrl> + <Shift> + <O>);
press <Ctrl> + <Z> once;
you can now check if your favorite bookmark is back (just check the "Bookmarks" menu, or by checking "All Bookmarks" → "Bookmarks Menu", or by using the "Search Bookmarks" feature).

Notes.

<Ctrl> + <Shift> + <Z> performs a generic "undo" function; therefore, it can undo not only bookmark deletion, but also bookmark addition or edit operation;
if you press this key combination several times, it will undo several last bookmark changes (though I'm not sure what's the depth of this "undo queue");
don't worry either if you've undone some useful bookmark changes: there's also a generic "redo" key combination: <Ctrl> + <Shift> + <Z> (or <Shift> + <Ctrl> + <Z>, if you prefer);
1. sometimes (e. g., in MS Windows), there's also another working "redo" hotkey: <Ctrl> + <Y>.

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Last updated: 2017-03-21

2016-12-31

Digital camera notes: Panasonic Lumix DMC-LX1

Panasonic Lumix DMC-LX1 is a portable digital camera.

Latest firmware version (known to me): "1.0A".

How to check it:

set the mode dial to "P";
press and hold together 2 buttons: "Stabilizer" ("hand") + "Up" (above the "MENU" button);
turn the camera on (switch the power key from "OFF" to "ON");
release the buttons (2);
set the mode dial to "Play" position;
if there's no detailed image information on the screen, press the "DISPLAY" button a few times, until it displays it;
press (and release) 2 buttons together: "Stabilizer" + "Down" (below the "MENU" button);
you should see 3 text lines of debugging info, and the 1st one contains the FW version info; e. g.: VER 1.0A:0000 means FW version "1.0A";
turn the camera off (switch the power key from "ON" to "OFF").

Unfortunately, no known FW updates found :(

External links:

Download - Digital Camera - Digital AV - Consumer Products - Support - Panasonic Global

Digital camera notes: Fujifilm FinePix T500

Fujifilm FinePix T500 is a mobile digital camera.

Latest firmware version (known to me): "1.00".
How to check it: turn the camera on (press the power button) while holding the "DISP/BACK" button.
Unfortunately, no known FW updates found :(

External links:

Digital camera notes: Sony MHS-CM5

Sony MHS-CM5 is a mobile HD camera.

Short specs:

video [MP4] resolution:: up to 1080p30 / 720p60 (1920x1080@30 fps, 1280x720@60 fps, 1280x720@30 fps etc.);
photo [JPG]:: up to 5 MP (max. 2592x1944).

Firmware notes.

Latest firmware version (known to me): "1.21".
How to check it: turn on the camera (open the LCD screen), and then quickly press and hold the "MENU" button; you'll see the FW version in the bottom right corner of the screen.
Firmare update file is usually named "SDV5591S.bin".
Quick firmware analysis suggests this Sony camera contains some hardware by Ambarella, which makes it somewhat related to GoPro.

Misc. notes. Sony PMB (Picture Motion Browser) software is abandoned. You can now use that partition of the camera's internal flash memory to store any other useful data ;)

External links:

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Last updated: 2019-04-24

2016-11-23

HOWTO: some experience with USB IrDA adapter (MA-620) on Debian Linux

Well, let's test it on Debian GNU/Linux (and it should work on Ubuntu and other derivatives too)...