About me

Developer Information
Name tmaibaum
User since May 19, 2008
Number of add-ons developed 0 add-ons
Average rating of developer's add-ons Not yet rated

My Reviews


Creates "PDF images" only Rated 3 out of 5 stars

The PDF files created by this add-on are actually just images within a PDF "container" file, i.e., you can't copy and paste text out of them, convert them to .txt or .doc, etc. I thought maybe this was just a matter of settings, but if it is, the relevant setting is well hidden - I couldn't find it.
To be sure, for some people/usage scenarios, that may be just right, and *in that case*, it works just fine. For everyone else, this fact should be mentioned in the description.

Space Next

Very helpful for mouseless browsing Rated 5 out of 5 stars

I'm a huge fan of the VimFX add-on. One of VimFX's disadvantages was that it doesn't handle moving to the next page of Google results very well (you always need to look for the randomly created keyboard shortcut, usually consisting of two letters, to go to the next page). This is where Space Next helps you out: At the bottom of any Google results page, just hit the space bar and on you go. A little more configurability (is that a word?) would be nice to have (such as assigning another keyboard shortcut instead of space). Still five stars from me.

Tab Groups Helper

A must-have – even when you hate Tab Groups...! Rated 5 out of 5 stars

First off, I don't need the Tab Groups feature. I'm a "tab messie" and have plenty of them at any given time. Personally I feel that TreeStyle Tabs is the best tool to keep large numbers of tabs organized; Firefox's Panorama/Tab Groups just adds additional complexity. Although nobody is being forced to use it, AFAIK there's no way to remove or disable this feature completely. For some reason every once in a while I end up with two or more tab groups, with tabs mysteriously "disappearing" without a trace – i.e., being moved to (an)other tab group(s). This usually happens after crashes. Just yesterday I ended up with more than 100 tabs being distributed across no fewer than four (!) groups, some being duplicated in more than one.
Finally, this is where Tab Groups Helper comes into play: It presents all existing groups in a convenient manner and let's you easily find and move tabs between them – making it a life-saving tool for repairing things in situations like the one just mentioned.
To sum up - Tab Groups Helper is great if you like tab groups. And even greater perhaps if you don't. :)

PS: Tab addicts should check out the developer's other add-ons as well.

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


Good, but not flawless. Rated 4 out of 5 stars

I prefer addons with as few frills as possible, so this is right up my street. However, it only displays the first paragraph of the blog posts, even if the full text is available in the feed. Also, disaster strikes when you hit Ctrl+F (find in page): The entire bottom three quarters of the tab turns grey and will only go back to normal after restarting Firefox.
However, if you only want to look at the beginning of blog posts AND remember not to use "find in page", this is just fine. For all those who prefer a more comfortable (albeit more complex and imperfect) feed reader add-on, check out NewsFox.

Edit re developer's reply below:

Thanks for your reply.

Regarding "incomplete posts": I tested this with a number of feeds (all WordPress-based IIRC) and invariably only the beginning of the post was displayed, while the full text is visible in both NewsFox and Thunderbird.

Regarding Ctrl+F—it is perfectly possible that this is due to an incompatibility with other addons, as I have plenty of them (no themes, though). In no way did I mean to imply that this (or the other issue) is necessarily caused by your own addon. I was just describing my own experience with it in the setting I happen to have.

The thing is, personally I simply didn't like MicroRSS well enough to justify going on a time-consuming hunt for incompatible addons (or even sacrifice them in favor of MicroRSS) OR to bother its developer with a troubleshooting request.

Having said that, I can unreservedly recommend MicroRSS for anyone who is looking for a no-frills feed reader AND who either doesn't have the issues I observed or isn't bothered by them (I'm sure that's still a huge number of people). That's why I gave it 4 stars out of 5. :)

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


Quite good, but obsolete when using mouse gesture addons. Rated 4 out of 5 stars

Provides a useful function and works flawlessly just as advertised. However, it conflicts with mouse gesture (provided by addons such as FireGestures) and/or can be replaced by them, as it provides just a subset of mouse gestures in general. I suppose that most people who want to switch between tabs with their mouse will also want to go back and forward in the history, close tabs, etc., with the mouse. However, for those who want to use the mouse for switching tabs (and nothing else) this is just right.


Not bad, but not "best in class". Rated 3 out of 5 stars

Not bad, works as advertised. However, the look and feel is somehow clunky (for want of a better word). Tabby2 does a better job IMHO (more features, nicer look, customizable key binding), but that's a matter of personal preference.


Perfect for mouseless browsing Rated 5 out of 5 stars

Together with VimFx, this is just perfect for using Firefox mouslessly (if Vimperator is overkill for you). The only thing I would change: Although the tab list is numbered, it's not possible to type those numbers to go straight to a tab. It would be nice to just type a number instead of a part of the tab title.

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


Rated 5 out of 5 stars

Great to see that this useful add-on still works and stubbornly refuses to be broken by the endless series of pointless Firefox GUI changes that broke so many others. My only complaint is that the icon is meaningless (blue square with two gray dots on it on mouse-over).

It's All Text!

Unicode characters get corrupted. :( Rated 3 out of 5 stars

The process of opening text in an external editor and saving the edited back to the web page works flawlessly. However, there is one issue that makes this pretty unusable for me: Even though the character set is UTF-8 (default), any non-ASCII characters in the text saved back to the browser get replaced with weird characters—diacritics (special characters in other languages), even typographic quotation marks. This happens with any editor I've tried (including Vim, Notepad, LibreOffice), so it's clearly a matter of this addon, not of the external editor. I'm still assuming this is a matter of settings, as no one else seems to have this issue. There even is a five-star review in Japanese below... However, when I copy and paste the Japanese text into an external editor and save it back to Firefox with this addon, all characters are replaced by question marks. Doh. Any help appreciated!

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

Fire Commander

Great! Rated 4 out of 5 stars

I like minimalistic software, so this is right up my street... Thanks a lot to the creator!
There's only two issues:
1) The icon puts itself on the far right side of the main toolbar and can neither be dragged around (although it's possible to drag the other icons *around* it) or removed altogether. Note: I have plenty of other addons installed, so this might be the result of addons clashing.
2) There seems to be no option to change the keyboard shortcut ALT+C, which is may already be used depending on the Firefox interface language (e.g., it's used for browsing history in German Firefox).
Other than that, great add-on.

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


Works fine, just as it should. Rated 4 out of 5 stars

Works fine, just as it should. Just two things that might be improved in a future version:
1 - Switching between various languages should be more straight forward, i.e. without having to go into add-ons/settings each time.
2 - It should be possible to transliterate a whole page immediately, without having to highlight the text first.

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

InstantFox Quick Search

Excellent usability, but what about that Santa hat?! Rated 5 out of 5 stars

This is an excellent add-on both in terms of function and usability. A nice touch is the "Omnibar" feature (integration of address bar and search bar). But isn't it about time the Santa hat that appeared on the magnifier-glass icon some time before Christmas finally went away?

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

NumExt - Numbered Tabs

Excellent Rated 5 out of 5 stars

The good news is, is this an excellent add on, and it still works fine in Firefox 25 in spite of having been abandoned by the developer.The bad news is, not only did the developer abandon it, he also took the help page down and doesn't respond to requests to put it back it. Trouble is, the default keyboard shortcut Alt+X may conflict with other extensions, or in German Firefox versions, with the Firefox shortcuts (in German Firefox, Alt+X opens the "Tools" menu).Here is how to change the NumExt shortcut to something else in a German Firefox: Type Alt+X to open Tools. Press N or use the mouse to select "NumExt (exec) from Tools - this opens a text field on the add-ons bar. In this field, type "execkey Y" to set the shortcut to "Alt+Y". Restart Firefox, and that's it.Another useful set of commands is "num" vs. "nonum" to show or hide the numbers on tabs.

Edit: @Ali Abbas, thank you so much!
BTW, just in case someone wants to fork it, the source code is available here:

Send to Kindle for Mozilla Firefox

Absolutely unusable in its current state Rated 1 out of 5 stars

I've been using the Send to Kindle feature of Readibility so far and was please to see Amazon finally released an "official" extension of their own. However, in it's current state this is simply a usability nightmare. The hotkeys are supposed to be ALT+K and ALT+P. However, it also triggers for several other key combinations: CTRL+C (copy - copied text doesn't up end on the clipboard, instead the Send to Kindle dialog comes up), SHIFT+arrow keys (so you can't highlight text with the keyboard any more), ALT+TAB (switching to another program). As a result, Firefox has become unusable for me.The question is, why don't the other reviewers mention those problems? It may well be that they don't highlight and copy text from websites using the keyboard (it works alright using the mouse), and don't switch tasks with ALT+TAB. Or this could be caused by a conflict with other extensions:The description contains a disclaimer: " The extension may also not work properly if you have extensions that block the use of JavaScript running. " I have no idea if this is causing this behavior, but even if it isn't this would be yet another reason not to use Send to Kindle: NoScript is an absolutely essential security extension that no one in their right mind would be willing to sacrifice for Send to Kindle. To be sure, I also have dozens of other addons, so this may be the result of other incompatibilies, too. The only way to find out would be to deactivate all of them except Send to Kindle, then switch them back on one by one and see what happens. But why would I want to do this when Readabiltiy works just fine (as well as a few other unofficial Kindle-support extensions)? There's no reason to put up with this.

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

Fit Images (restartless)

Rated 4 out of 5 stars

Nice alternative to Image Zoom, which is no longer working in newer versions of Thunderbird - thanks!

Just 4 stars because there is still some room for improvement: It would be great if future versions would also let you rotate images, the way Image Zoom did. (I keep getting photos in landscape mode that should have been portrait mode and vice versa.)

Find In Tabs

Essential add-on for everyone who does a lot of research. Rated 5 out of 5 stars

I was heartbroken when this stopped working in Firefox 3.6 or 4 (don't remember). As the previous reviewer said, it's now just a matter of updating the max version in the install.rdf file. I have uploaded a new version here:
This is identical with except the max number is set to 20.*.*
If you don't trust xpi files from a stranger ;) here's how to do it yourself:
1) Unzip the .xpi file with a file compression software. Don't know how? Just rename the extension to .zip and click on it.
2) Open install.rdf in a text editor (like Notepad). If you don't know how to do it, change the extension .xpi to .txt and double-click on the renamed file.
3) Go to the line that says "<em:maxVersion>3.5.*</em:maxVersion>" and change it to a higher version as needed (my version is <em:maxVersion>20.*.*</em:maxVersion>, but of course it must at least be the version you're currently using). Close and don't forget to save. If you renamed the file to install.txt, change it back to install.rdf.
4) Re-zip all unzipped files and save as .xpi (or rename from .zip to .xpi after saving, if you changed the extension).
5) In Add-ons manager, click on the "cogwheel" icon next to the search field and select "install from file".

I wonder why Mozilla continues to treat this wonderful add-on as "dead." To anyone who can, feel free to upload my unofficial update to

Back/forward dropmarker

Rated 5 out of 5 stars

Works just fine; can't confirm the bug reported by x-ram on September 23, 2011.

SciLor's Grooveshark Unlocker for Germany

Works as advertised. Rated 5 out of 5 stars

Thanks, works like expected: Provides instant access to Grooveshark in Germany without the need to fiddle around with proxy settings. It's a bit slow sometimes, which is of course inevitable, and the German "apologies" page does appear from time to time, but each time it disasappears after one or two seconds. Schönen Dank!

Disclaimer: I'm not saying Grooveshark is legal or morally legitimate - I just resent the idea of governments telling people what they are supposed to look at (or listen to) on the internet. For as long as the site as such exists and you decide to use it, please do so responsibly. Use it to discover artists, not to exploit them.

This review is for a previous version of the add-on (0.3). 

Copy Urls Expert

Useful and works as it should. Rated 5 out of 5 stars

There are quite a lot of extensions that let you copy the URLs of tabs, but this is the only one I know of that lets you - among other things - easily copy the URLs of a specific window. Useful especially if you organize sessions into windows with tabs relating to specific topics.

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

Close Multiple Tabs

Rated 5 out of 5 stars

Does what it says without causing any trouble. However, for the sake of completeness, its job can also be done with TabHunter, which also lets you jump to tabs, and search inside their titles, URLs, and even inside the pages themselves. The only difference is that tabs to be closed can't be selected with checkboxes, but have to be clicked while holding down CTRL (like files in Explorer) and then closed from the context menu. There also is an extension called Multiple Tab Handler which lets you select tabs and do various things with them (including closing them). Those two make this extension pretty much obsolete. Still, I'm giving it five stars because it works as advertised and it wouldn't be fair to compare it with the competition when it gets its job done just fine.