How do I update firefox on ubuntu 16.04 LTS please help
I want to install the latest Firefox on my Ubuntu (64bit) box.  What is the best way to do this? Is there a specific update site or should I download the binaries manually? If doing manually, in which directory should I put the files? In my home directory, or is there a better place?
Showing that $\mathbb{Q}[\sqrt{2}, \sqrt{3}]$ contains multiplicative inverses Why must $\mathbb{Q}[\sqrt{2}, \sqrt{3}]$ -- the set of all polynomials in $\sqrt{2}$ and $\sqrt{3}$ with rational coefficients  -- contain multiplicative inverses?   I have gathered that every element of $\mathbb{Q}[\sqrt{2}, \sqrt{3}]$ takes form $a + b\sqrt{2} + c\sqrt{3} + d\sqrt{2}\sqrt{3}$ for some $a,b,c,d \in \mathbb{Q}$, and I have shown that $\mathbb{Q}[\sqrt{2}]$ and $\mathbb{Q}[\sqrt{3}]$ are both fields, but it's not clear to me why this allows for general multiplicative inverses to exist in $\mathbb{Q}[\sqrt{2}, \sqrt{3}]$. Correct XML serialization and deserialization of "mixed" types in .NET Beamer, Babel and Tikz conflict Recovering lost text which was copy pasted from a website to MS Word A positive integer $n$ is called a balancing number if  $$1 + 2 + \cdots + (n − 1) = (n + 1) + (n + 2) + \cdots + (n + r) \tag{1}$$  for some positive integer $r$.     Problem: Find the general solution (closed-form expression) of equation $(1)$, in other words, find $f_1(m)=n, f_2(m)=r$ where $f_1, f_2$ are solution of $(1)$ for any integer $m \in \mathbb Z$.   I have asked a  with a constrain involving Pell's equation. Why is there an extra plastic container in my toilet tank? Can I enable AHCI after installing Windows 7 in a SATA drive that was on IDE mode? Can the Room of Requirement provide anything if needed? For example:   James Potter wanted to hide from Voldemort, it would have served as a perfect hiding place. Harry Potter wanted all the Hocruxes, he should have gone straight to the room of requirement where he would have found all the Hocruxes along with the Sword. All the muggle borns of the wizarding community could have taken refuge in the room of requirement. Can someone meet a dead person in the room of Requirement if needed? Would it have been possible for Harry to go in past in order to see Dumbledore for the explanation of many things? Can the room duplicate something? For instance, Harry needed the Elder wand; with Voldemort having it, could he still get it? Someone wishes to be knowledgeable than Dumbledore, would the seeker find his desired wish by finding books and things?   Who created the room of requirement (surely not Salazar)? Was it beyond Dumbledore's magic to create such a place? I can never figure out whether I should use who and whom. Most people use who for both colloquially, but some people say this is not correct.  What’s the rule for using who and whom correctly? How do I tell which point-and-shoot cameras take good low light photos? What if client doesn't like any logo design concept? I'm in a process of creating Graphic Design contract. I've decided to provide each client with 3 logo concepts and 3 rounds of revision. Ideally, I would create 3 concepts and client will chose one, but it happend to me before that client didn't like and concept and I end up with doing 10+ more (yes, I've worked without contract).  How can I prevent this situation? Should I charge hourly for each new concept separately? How can I express my thoughts clearly in a contract (without sounding like 'if you don't like any, you'd have to pay more)? I don't want to scare client and put thoughts into their minds saying that there is a possibility that they won't like me ideas. I've been thinking about switching to Ubuntu full time, but there are still some programs left behind that I haven't found any equivalent to yet. Does anyone know of a music player similar to Foobar2000 (I've read it doesn't handle well in WINE)? Should "Applied Cryptography" be capitalized? Is it a proper noun? I'm trying to write a cover letter for a fairly prestigious job, and I'm aiming for (arguably too much) perfection in my cover letter. I don't want to be turned away only because the hiring people though I was too careless with my punctuation and capitalization.  My sentence goes as follows:     I hope to one day go on to complete a Masters degree in Computer Science with a focus in Applied Cryptography.   I've never been great with the technical rules of the English language, despite being a native speaker. Which attacks are possible against raw/textbook RSA? Script access to tangent and bitangent, per face: how? Suppose you have a mesh; you go into Edit mode,  set Transform Orientation to Normal,  show 3D manipulator widget, Pivot Point = Active Element, face select mode, and then you select any one face: immediately you will see a blue arrow representing the face normal, and also a red and a green arrow representing the face's tangent and bitangent.  What is the most straightforward way to refer  to said tangent and bitangent vectors from a Python script? The API documentation confuses me with loops and uv's, yet, clearly, Blender assigns a tangent and bitangent to each face without hesitation! How to compute $\int_0^{\pi/2}\frac{\sin^3 t}{\sin^3 t+\cos^3 t}dt$? Disable auto-opening nautilus window after auto-mount Every time I plug a USB stick in, nautilus opens a new window with the contents of the drive. I would like to disable this auto-opening of the nautilus window, but I would like the actual auto-mount to keep working. Is this possible? I am being flown out by a company for an on-site visit. Will I earn miles for this trip, or will the company? Django template how to look up a dictionary value with a variable Was Luke aware the Emperor was a Sith Lord? Similar to , I'm asking the more specific question, was Luke aware that the Emperor was a Sith Lord? I don't recall it being mentioned in any of the films.  If yes, at what point does he learn this? If not why did Yoda or Obi-Wan not warn him?  Perhaps he could have avoided being defenseless and struck by Force Lightning if he'd been made aware?