About me

Developer Information
Name Cyberknight
User since March 29, 2013
Number of add-ons developed 0 add-ons
Average rating of developer's add-ons Not yet rated

In a little more detail...

Cyberknight, the guardian of the Unicorns.

My Reviews

Stylish - Custom themes for any website

Rated 5 out of 5 stars

For all those complaining that Stylish stopped working on FF 61: Mozilla (again) broke up things. "-moz-document" (which never left the "experimental" status) is now blocked to work on remote URL, i.e., it's useless now. Just remove the "-moz-document" lines from the scripts and they will start working again. About the URL restrictions, now Stylish requires the addresses to be input in a specific field on the bottom of the script editing Page. Of course, incorporating "-moz-document" in the script was much easier, dozens of domains could be filtered at once. Now, they have to be entered one by one. On the plus side, Stylish still has the same flexibility regarding domain definitions, including regex rules! On the plus-plus side, it doesn't depend on Mozilla's moods anymore...

This review is for a previous version of the add-on (3.1.1). 

PlayFlash 32bit

Rated 5 out of 5 stars

Mozilla changed the whole add-ons platform. Fine, it's their product, they can do as they please... But releasing a completely different product and pretend it's still the same is unfair, to say the least. Firefox Quantum may look somewhat the same, but the internals are very different from real/old Firefox. That said, I have to thank so very much to developers of legacy add-ons like this one, that are still supporting old Firefox, even knowing it's a lost war, because, eventually, sites will simply stop being compatible with it and everybody will be sooner or later forced to adopt the new Firefox Quantum, even if many, and I mean really lots of absolutely necessary add-ons and plug-ins are unsupported and deprecated. I don't use Firefox just for "browsing", it's my job's main tool, to produce texts, programs (yes, some people do real work with HTML+JavaScript+SVG, it's way faster than compiling in any other programming language) and so much more. Time is the most valuable commodity and add-ons like this are time savers! Thanks again!

This review is for a previous version of the add-on ( 

PlayFlash 64bit

Rated 5 out of 5 stars

I had to reinstall Windows and, guess what, I forgot to install Adobe Flash Player. Of course, I didn't notice it at first, as it is mostly used for spamming ads nowadays, but when an on-line learning site required it, I thought it was a Firefox 56's problem. Searching for a solution, this add-on popped up and, amazingly, it works! Too bad Mozilla will probably not support it on Firefox 57, because it is absolutely essential to those that don't want the harassment of having most-of-the-time useless AFP installed on their systems and are still forced to access sites that only work with it on. Thank you very much for this wonderful and essential add-on!

This review is for a previous version of the add-on ( 

Add-ons Manager Context Menu

Rated 5 out of 5 stars

This is the perfect add-on to manage add-ons. Of course, there is always space for a tweak here and there, but as it is, it works amazingly well and is a life saver, mainly for those that really care for their Firefox installations (auto-updating is for "lusers", there, I said it!)

Having read a lot about WebExtensions and coded some myself to check how far they can go, I realised that this add-on may be on its last days. I hope Firefox >57 will have a WE API, allowing a WE to access info of other installed WE, so this add-on could create a clone of the "about:addons" Page, without the functionality restrictions, otherwise, I will really miss it.

Thank you for one of the greatest add-ons and good luck!

This user has a previous review of this add-on.

Youtube Best Video Downloader 2 - MP3 MP4 1080P

Rated 1 out of 5 stars

It looks a lot, and I mean A LOT like Easy YouTube Downloader. And like the former, it is just as lame: it cannot download 1080p files. But, unlike that, it doesn't push a "PRO users" junk, instead, it opens a Page from an external server that gets the 1080p files and then downloads from it (or the user has to download from it, I don't know, because I cancelled the Page loading as soon as I realised what was going on, as I couldn't care less). There are other add-ons that allow downloading the 1080p videos separated from the audio tracks, which any good player will automatically load, or the user may join them into a single file using the "copy" options of ffmpeg freeware.

This review is for a previous version of the add-on (7.73). 

Tab Count Badge

Rated 5 out of 5 stars

It's about 11KB in size (packed), being a middle range contender (the smallest I've tested is 6.5KB, packed). It uses a timeout to update the badge, what I'm not sure is the best way of doing it (I've seen others using event triggers). Nevertheless, it's very light and works fine, using WebExtensions technology and is bootstrapped (no restart required).

This review is for a previous version of the add-on (0.0.3). 

Duplicate Tab Blocker

Rated 3 out of 5 stars

I have seen that other people have complained about this. When there are lots of tabs, Firefox becomes slow and, sometimes (more often than it should) doesn't load some tabs (they stay on about:blank). It usually happens when loading a session or after a restart (because Firefox does a session reloading). That triggers this add-on, which promptly clears all about:blank tabs, except one, as they all look the same. It's a problem with Firefox loading sessions, but made worse with this add-on's action, which doesn't wait for the tabs to fully load before cleaning (actually, I don't even know if that is possible, as it's a Firefox problem handling more than, say, some hundreds of tabs). A solution could be to not automatically close duplicated tabs, just new duplicated tabs, with an option to manually trigger a duplicated tabs clean-up.

Add-ons Manager Context Menu

Rated 5 out of 5 stars

This is one of those add-ons that should simply be merged into Mozilla's codes (Firefox, Thunderbird etc.), as the functions added should be part of the Add-ons Manager context menu just out-of-the-box.