Functional Slide Rule

Name: Functional Slide Rule
Rating: 5 (1 reviews)
Author: BrianZ

By: BrianZ

This is an actual functioning slide rule to multiply, divide, find squares and roots. Ctrl-F to show sliding scale D, then move window bottom up until scale D meets scale C, then move window sides to slide scale D along scale C to multiply & divide. Read squares and roots directly from scales B and C. Works best at higher screen resolutions; toolbars set for no tabs on top and 100 pixels of header showing. To rate or comment, login here: https://addons.mozilla.org/en-US/firefox/addon/functional-slide-rule/#id=306364 See all my personas here: https://addons.mozilla.org/en-US/firefox/collections/BrianZ/personas/ (c) 2011 BrianZ

This add-on was removed from Firefox Add-ons Store on 2026-06-05

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User Growth & Download Statistics

Theme

By:

BrianZ

Daily users:

Rating:

5.00

(1)

Version:

2.0 Last updated: 2019-05-13

Version code:

4103554

Creation date:

2011-04-11

Risk:

Size:

29.07KB

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-05

Compare stats and ranking:

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Developed by:

BrianZ

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/functional-slide-rule/

User Reviews

It's BrianZ - of course it's functional! Why wouldn't it be? LoL. =) Yet another example of not only your level of creativity, but of your always helpful nature. Awesome! ;)

by Sa*****, 2012-03-18

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Is Functional Slide Rule Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Functional Slide Rule does not require any sensitive permissions.

Risk impact analysis details

Low This permission has no access or impact on the user's system or data, thus carrying no risk.

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Functional Slide Rule has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
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