How to replace digis numbers in youtube with empty space? Rated 4 out of 5 stars

How to replace numbers ( any digits number :1234567890 ) in all youtube site with empty space?
I cannot configured it properly,could you show me how to do this so that it will do it everytime I load youtube URLs?

Rated 4 out of 5 stars

The shortcut of FoxReplace F8 now is used by "Firefox WebIDE". So please change the shortcut by other.

Rated 5 out of 5 stars

really helped me.
used this addon to replace some urls in page source

Rated 5 out of 5 stars

i need a compatible version of this plugin for Seamonkey Version 2.33.1 i miss this plugin and used to use it everyday and wish to import my old list to the new browser. thank you.

Thank you for your review. Seamonkey is not supported by FoxReplace and there are currently no plans to support it.

Super Powerful (Updated) Rated 5 out of 5 stars

I always like to manipulate webpages to my satisfaction. This is after all why I choose to use Firefox. This addon can do the jobs of several of my other addons, and more.

For one, I can view directly real-size embedded images instead of undersized ones. Some images end with suffix like "-600x800.jpg". An user can access the real-size ones by simply removing the dimension string from URL. Until now, I have to open the image in a new tab, and use a URL redirector to show the image I want to see. With this addon, I can save bandwidth, and load them all at once.

I also use it to override css. I used to do this with userContent.css, but this way requires restart. I especially loathe floating navbar/footer. Editing the html in FoxReplace is simpler that the old way.

Plus, I get to customize favicon, and shorten page title to save precious tab space, without installing a new addon.

My only difficulty with it is that Periodically Update URL doesn't seem to support "file:///". I have several firefox profiles and I keep them in line through the same user.js. Because I cannot set Update to a local file, I have to open up prefs.js of the profile I just changed, copy and paste the relevant entry to user.js. This is how I keep FoxReplace in all my profiles to the same setting. I wonder whether the lack of "file:///" is a bug, or an yet-supported feature.

Update: I used 0.16.1 when I wrote this review. Just like the dev said in his reply, 0.17.0b2 corrected the "file:///" bug! Thanks!

Thanks for your review. The issue you describe with the file:/// URL is fixed in the latest beta. If you want to try it, you can get it from

Mostly, but not always, does what I want Rated 4 out of 5 stars

I'm using this thing to replace American English spellings (I'm not saying American English is wrong, just that I'm not from the US and prefer reading text the way I'm used to) and this mostly lets me do that, but it's not perfect.

Currently, if I create a rule to replace "dialog" with "dialogue" it does it, but it also replaces any original "dialogue" with "dialogueue". To get around this I changed the rule making "dialog " to "dialogue " (note the space). However, this creates a problem with punctuation, because if text says "dialog." or "dialog," then it doesn't get replaced. This means I have to create extra rules to cover those instances.

I'm not really a programmer so I don't know how feasible a solution is, but maybe you could add some sort of wildcard character that to cover non-alphabet characters? So "dialog#" would work the same for "dialog ", "dialog," and "dialog." etc. Or perhaps make it so that it doesn't automatically put the replacing word when it's already there.

Furthermore, it doesn't allow for capitalisation - so if I make a rule changing "center" to "centre", it also changes "Center" to "centre", and to get around that I have to make two separate rules that use 'Match case'. Some way to automatically keep capitalisation would be handy.

Finally, I've noticed that loading times build up quite a bit - if I open a couple of Wikipedia pages full of text, it freezes up for a few seconds. This is likely because I have it set to work on page load, but it's either that or make it replace every few seconds, which is unnecessary. If I could have an option to replace once, a few seconds after loading, that would be perfect.

Thanks for your time.

Hi, thank you for the review. To solve your first issue you can use whole words (click the button to the left of the replace field). As for your other suggestions, I'll consider them for future releases.

Rated 5 out of 5 stars

good,it's very useful!

Great Extension but some erorrs Rated 5 out of 5 stars

It's Great extension, but there is some errors in replacing HTML with "Input and Output" option of pages in I use it for adding specific font color for some users in When i use it - scripts on page didn't work. I checked, my replace string is not corrupt any scripts in html code. Plz check video of error to see better -
If you will fix, it would be greatest extension ever! =)

Hi, thank you for your review. The issue you explain is a known bug:

Rated 5 out of 5 stars

incridible tool, i just combine it with im@cr0s w3b @ut0mati0n to edit post on textarea, i think its good it is have option to import bulk query from csv or excel..... cz build .json so hard for beginer

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

Rated 5 out of 5 stars

Please, add option - replace only for input filed.

LOVE IT Rated 5 out of 5 stars

This extension allows me to find and replace entire bodies of automatic emails in our training system. Each course code has it's own set of emails and the set can only be accessed on a single long webpage. It was a godsend when we changed our email address and every single instance needed to be updated. I was able to load each course code, click a button, then click save.

This saved me weeks of time! I now also use it when entire email bodies need to be replaced for several courses.

The main toolbar is accessible via F8 keyboard shortcut, make sure it does not interfere with other programs Rated 5 out of 5 stars

I'm using FF 34.0. The addon seems to be very feature-rich, but unfortunately I could not get it to work.
The Shift+F8 keyboard shortcut launches the Firefox WebIDE. I couldn't get the main window by clicking on Tools > FoxReplace > Replace with substitutions either. :(

Before, I was not able to launch the bottom toolbar. The reason was that I had another program installed on my computer which was using the F8 keyboard shortcut. I could solve this by changing the FoxReplace's keyboard shortcut from F8 to F4 using the addon introduced by MarcRA in my response.

Great job Marc, Thanks!

Also, if possible, I would like to suggest adding this item to the FoxReplace menu.

Thanks for using FoxReplace! The shortcut will be changed in the next version. In the meantime you can change it with this other addon ( or try the beta version of FoxReplace, which has already the new shortcuts.

Excelente Rated 5 out of 5 stars

Este complemente está súper, funciona muy bien ,me ahorra mucho tiempo en el trabajo diario reemplazando miles de palabras. Gracias.

Rated 1 out of 5 stars

Maybe it's time to solicit help from other developers to get the outstanding issues and feature requests fixed / implemented.

This user has 2 previous reviews of this add-on.

Your two requests from your first review are already implemented since a long time ago. In your two next reviews you have complained about "outstanding bugs/issues and missing features", but you don't specify what. You should do that at

Rated 1 out of 5 stars

I can't stand it when an extension wastes my time by having hidden documentation or no documentation at all. In the "About" it says you can find help in "Tools>FoxReplace>Help" but there is no "Tools" menu item anymore. It then say you can go to the "Help or Firefox menu>Replace>Help" and that does not exist either. When I press Shift+F8 nothing at all happens.

I'm sure the extension works fine but if there's no way to learn how to use it, it's totally worthless.

Sorry, I haven't updated the "About" text since a long time ago. But you can still access the Tools menu by pressing the Alt key. Shift+F8 is used in the newest Firefox versions by the WebIDE, so the shortcut will have to be changed. But assuming you don't have the WebIDE, Shift+F8 is used to manually apply the substitution list(s) to the current page. So, you have to first define the substitutions you want to apply.

Rated 5 out of 5 stars

Using it for fun, and it works correctly. Just set up the replace list and get it to auto-run on page load.

not working Rated 5 out of 5 stars

it seems like a great extension. but i can not get it working, pressing shift+F8, nothing happened
oh, i know how it works! you must set a find&rep rule in options, then selecting the text, pressing shift+f8, all is done by your define find&rep rule. thanks

Rated 5 out of 5 stars

Okay works.

Вопрос по расширению Rated 5 out of 5 stars

Здравствуйте, можно ли сделать, чтобы при замене найденного текста проигровался какой-то звук?
Hello, can I do to replacement text was sound?

Hi, I don't understand your question, but you should post it to instead, and please try to explain better.

Nice stress reliever. Rated 5 out of 5 stars

I set it up to replace "Evil Asshole" with "Evil Asshole". It makes watching news clips that reference Evil Asshole so much more bearable.